Shard
Spencer   Nova Scotia, Canada
Level
84
Magnate of Amassment
8,116 XP
 
 
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Currently Online
Badges  133
Games  7,866
Inventory   
Screenshots  8
Reviews  25
Groups  15
Humble Games
142,250 Members
LA Game Space
463 Members
Rosary Nightmares
5 Members
Game Collector
7,866
Games Owned
2,380
DLC Owned
25
Reviews
986
Wishlisted
Featured Games
Badge Collector
133
Total Badges Earned
908
Game Cards
Rarest Achievement Showcase
+4,466
4,486
Achievements
23
Perfect Games
29%
Avg. Game Completion Rate
Review Showcase
Terraria
284 Hours played
This is the most played game in my library? Guess that speaks for itself, then. And it still keeps updating with new features, it's amazing.

I guess it's actually not #1 anymore, but it's still #2 and I'm well overdue to take another crack at it.

EDIT: In December 2019 it's still #2, woo!
EDIT2: In 2020 Steam doesn't want to tell me what my most played game is, but Terraria is better than it ever was!
Completionist Showcase
36 / 36 Achievements
23
Perfect Games
448
Achievements in Perfect Games
Recent Activity
14.8 hours past 2 weeks
129 hrs on record
last played on 29 Dec
MultiVersus
Achievement Progress   27 of 28
+22
Review 1
0 hrs on record
last played on 28 Dec
SONIC X SHADOW GENERATIONS
Achievement Progress   0 of 40
4.7 hrs on record
last played on 23 Dec
Ballionaire
Achievement Progress   7 of 16
+2