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51 of 51 (100%) Achievements Earned::

Personal Achievements
 

Wake Up Call

Survive the manual override
Unlocked 9 Aug, 2013 @ 3:17pm

You Monster

Reunite with GLaDOS
Unlocked 9 Aug, 2013 @ 3:39pm

Undiscouraged

Complete the first Thermal Discouragement Beam test
Unlocked 9 Aug, 2013 @ 3:43pm

Bridge Over Troubling Water

Complete the first Hard Light Bridge test
Unlocked 10 Aug, 2013 @ 5:29pm

SaBOTour

Make a break for it
Unlocked 10 Aug, 2013 @ 6:07pm

Stalemate Associate

Press the button!
Unlocked 10 Aug, 2013 @ 6:31pm

Tater Tote

Carry science forward
Unlocked 12 Aug, 2013 @ 12:30am

Vertically Unchallenged

Master the Repulsion Gel
Unlocked 12 Aug, 2013 @ 12:16am

Stranger Than Friction

Master the Propulsion Gel
Unlocked 12 Aug, 2013 @ 12:42am

White Out

Complete the first Conversion Gel test
Unlocked 12 Aug, 2013 @ 12:55am

Tunnel of Funnel

Master the Excursion Funnel
Unlocked 12 Aug, 2013 @ 7:09am

Dual Pit Experiment

Do the same test twice
Unlocked 12 Aug, 2013 @ 1:20am

The Part Where He Kills You

This is that part
Unlocked 12 Aug, 2013 @ 7:15am

Lunacy

That just happened
Unlocked 12 Aug, 2013 @ 7:35am

Drop Box

Place a cube on a button without touching the cube
Unlocked 10 Aug, 2013 @ 9:55pm

Overclocker

Complete Test Chamber 10 in 70 seconds
Unlocked 3 Dec, 2015 @ 1:28pm

Pit Boss

Show that pit who's boss
Unlocked 12 Aug, 2013 @ 7:15am

Preservation of Mass

Break the rules in Test Chamber 07
Unlocked 10 Feb, 2014 @ 12:18am

Pturretdactyl

Use an Aerial Faith Plate to launch a turret
Unlocked 3 Dec, 2015 @ 1:06pm

Final Transmission

Find the hidden signal in one of the Rat Man's dens
Unlocked 10 Feb, 2014 @ 12:12am

Good Listener

Take GLaDOS' escape advice
Unlocked 10 Aug, 2013 @ 6:08pm

Scanned Alone

Stand in a defective turret detector
Unlocked 10 Aug, 2013 @ 6:20pm

No Hard Feelings

Save a turret from redemption
Unlocked 10 Aug, 2013 @ 6:17pm

Schrodinger's Catch

Catch a blue-painted box before it touches the ground
Unlocked 4 Dec, 2015 @ 1:30pm

Ship Overboard

Discover the missing experiment
Unlocked 4 Dec, 2015 @ 1:35pm

Door Prize

Examine all the vitrified test chamber doors
Unlocked 4 Dec, 2015 @ 1:34pm

Portrait of a Lady

Find a hidden portrait
Unlocked 12 Aug, 2013 @ 12:37am

You Made Your Point

Refuse to solve the first test in Chapter 8
Unlocked 4 Dec, 2015 @ 1:39pm

Smash TV

Break 11 test chamber monitors
Unlocked 7 Dec, 2015 @ 11:31pm

High Five

Celebrate your cooperative calibration success
Unlocked 23 Apr, 2014 @ 6:12pm

Team Building

Complete all test chambers in the Team Building co-op course
Unlocked 23 Apr, 2014 @ 7:10pm

Confidence Building

Complete all test chambers in the Mass and Velocity co-op course
Unlocked 23 Apr, 2014 @ 7:57pm

Bridge Building

Complete all test chambers in the Hard-Light Surfaces co-op course
Unlocked 24 Apr, 2014 @ 11:19am

Obstacle Building

Complete all test chambers in the Excursion Funnels co-op course
Unlocked 15 Dec, 2015 @ 9:29pm

You Saved Science

Complete all test chambers in all courses of co-op
Unlocked 3 Jul, 2017 @ 7:11pm

Iron Grip

Never lose a cube in Chamber 6 of the Mass and Velocity co-op course
Unlocked 3 Jul, 2017 @ 8:45pm

Gesticul-8

Perform all 8 gestures of your own volition in co-op
Unlocked 24 Apr, 2014 @ 11:45am

Can't Touch This

Dance in front of a turret blocked by a hard light bridge in co-op
Unlocked 15 Dec, 2015 @ 9:14pm

Empty Gesture

Drop your co-op partner in goo while they are gesturing by removing the bridge under them
Unlocked 15 Dec, 2015 @ 10:04pm

Party of Three

Find the hidden companion cube in co-op test chamber
Unlocked 3 Jul, 2017 @ 6:07pm

Narbacular Drop

Place a portal under your co-op partner while they are gesturing
Unlocked 15 Dec, 2015 @ 9:19pm

Professor Portal

After completing co-op, complete Calibration Course online with a friend who hasn’t played before
Unlocked 3 Jul, 2017 @ 9:43pm

Air Show

Perform 2 aerial gestures before touching the ground in co-op
Unlocked 24 Apr, 2014 @ 10:46am

Portal Conservation Society

Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements
Unlocked 3 Jul, 2017 @ 9:21pm

Four Ring Circus

Enter 4 different portals without touching the ground in co-op
Unlocked 3 Jul, 2017 @ 6:50pm

Triple Crown

Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each
Unlocked 4 Jul, 2017 @ 10:50pm

Still Alive

Complete Course 4 with neither you nor your co-op partner dying
Unlocked 4 Jul, 2017 @ 11:53pm

Asking for Trouble

Taunt GLaDOS in front of a camera in each of the five co-op courses
Unlocked 3 Jul, 2017 @ 6:13pm

Rock Portal Scissors

Win 3 co-op games of rock-paper-scissors in a row
Unlocked 15 Dec, 2015 @ 9:05pm

Friends List With Benefits

While playing co-op, hug 3 different people on your friends list
Unlocked 3 Jul, 2017 @ 9:44pm

Talent Show

Never lose a cube in Chamber 6 of the Mobility Gels co-op course
Unlocked 3 Jul, 2017 @ 8:53pm