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46 of 51 (90%) Achievements Earned::

Personal Achievements
 

Wake Up Call

Survive the manual override
Unlocked 28 Jul, 2011 @ 9:51am

You Monster

Reunite with GLaDOS
Unlocked 28 Jul, 2011 @ 10:20am

Undiscouraged

Complete the first Thermal Discouragement Beam test
Unlocked 28 Jul, 2011 @ 10:26am

Bridge Over Troubling Water

Complete the first Hard Light Bridge test
Unlocked 28 Jul, 2011 @ 10:12pm

SaBOTour

Make a break for it
Unlocked 29 Jul, 2011 @ 10:20am

Stalemate Associate

Press the button!
Unlocked 30 Jul, 2011 @ 11:56pm

Tater Tote

Carry science forward
Unlocked 31 Jul, 2011 @ 5:28am

Vertically Unchallenged

Master the Repulsion Gel
Unlocked 31 Jul, 2011 @ 12:57am

Stranger Than Friction

Master the Propulsion Gel
Unlocked 5 Aug, 2011 @ 6:24am

White Out

Complete the first Conversion Gel test
Unlocked 5 Aug, 2011 @ 6:49am

Tunnel of Funnel

Master the Excursion Funnel
Unlocked 7 Aug, 2011 @ 5:57am

Dual Pit Experiment

Do the same test twice
Unlocked 6 Aug, 2011 @ 3:36am

The Part Where He Kills You

This is that part
Unlocked 7 Aug, 2011 @ 6:09am

Lunacy

That just happened
Unlocked 12 Aug, 2011 @ 7:15am

Drop Box

Place a cube on a button without touching the cube
Unlocked 28 Jul, 2011 @ 10:49am

Pit Boss

Show that pit who's boss
Unlocked 2 Oct, 2011 @ 1:37am

Preservation of Mass

Break the rules in Test Chamber 07
Unlocked 2 Oct, 2011 @ 7:57am

Pturretdactyl

Use an Aerial Faith Plate to launch a turret
Unlocked 18 Sep, 2011 @ 9:31am

Final Transmission

Find the hidden signal in one of the Rat Man's dens
Unlocked 2 Oct, 2011 @ 7:48am

Good Listener

Take GLaDOS' escape advice
Unlocked 29 Jul, 2011 @ 10:22am

Scanned Alone

Stand in a defective turret detector
Unlocked 29 Jul, 2011 @ 10:42am

No Hard Feelings

Save a turret from redemption
Unlocked 29 Jul, 2011 @ 10:38am

Schrodinger's Catch

Catch a blue-painted box before it touches the ground
Unlocked 8 Apr, 2018 @ 6:49am

Ship Overboard

Discover the missing experiment
Unlocked 5 Apr, 2012 @ 6:21am

Door Prize

Examine all the vitrified test chamber doors
Unlocked 5 Apr, 2012 @ 6:40am

Portrait of a Lady

Find a hidden portrait
Unlocked 8 Apr, 2018 @ 7:14am

You Made Your Point

Refuse to solve the first test in Chapter 8
Unlocked 9 May, 2014 @ 10:01am

Smash TV

Break 11 test chamber monitors
Unlocked 12 Apr, 2018 @ 1:38am

High Five

Celebrate your cooperative calibration success
Unlocked 1 Oct, 2011 @ 6:29am

Team Building

Complete all test chambers in the Team Building co-op course
Unlocked 8 Oct, 2011 @ 4:46am

Confidence Building

Complete all test chambers in the Mass and Velocity co-op course
Unlocked 8 Oct, 2011 @ 5:23am

Bridge Building

Complete all test chambers in the Hard-Light Surfaces co-op course
Unlocked 18 Nov, 2011 @ 9:43pm

Obstacle Building

Complete all test chambers in the Excursion Funnels co-op course
Unlocked 31 Mar, 2012 @ 5:58am

You Saved Science

Complete all test chambers in all courses of co-op
Unlocked 28 Jul, 2018 @ 6:51am

Gesticul-8

Perform all 8 gestures of your own volition in co-op
Unlocked 26 Nov, 2011 @ 9:28pm

Can't Touch This

Dance in front of a turret blocked by a hard light bridge in co-op
Unlocked 31 Mar, 2012 @ 5:43am

Empty Gesture

Drop your co-op partner in goo while they are gesturing by removing the bridge under them
Unlocked 31 Mar, 2012 @ 6:10am

Party of Three

Find the hidden companion cube in co-op test chamber
Unlocked 31 Mar, 2012 @ 5:55am

Narbacular Drop

Place a portal under your co-op partner while they are gesturing
Unlocked 31 Mar, 2012 @ 6:21am

Professor Portal

After completing co-op, complete Calibration Course online with a friend who hasn’t played before
Unlocked 11 Aug, 2020 @ 5:14am

Air Show

Perform 2 aerial gestures before touching the ground in co-op
Unlocked 26 Nov, 2011 @ 9:09pm

Four Ring Circus

Enter 4 different portals without touching the ground in co-op
Unlocked 28 Jul, 2018 @ 10:12am

Asking for Trouble

Taunt GLaDOS in front of a camera in each of the five co-op courses
Unlocked 31 Mar, 2012 @ 6:01am

Rock Portal Scissors

Win 3 co-op games of rock-paper-scissors in a row
Unlocked 11 Aug, 2020 @ 5:15am

Friends List With Benefits

While playing co-op, hug 3 different people on your friends list
Unlocked 11 Aug, 2020 @ 5:14am

Talent Show

Never lose a cube in Chamber 6 of the Mobility Gels co-op course
Unlocked 28 Jul, 2018 @ 7:02am



Overclocker

Complete Test Chamber 10 in 70 seconds

Iron Grip

Never lose a cube in Chamber 6 of the Mass and Velocity co-op course

Portal Conservation Society

Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements

Triple Crown

Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each

Still Alive

Complete Course 4 with neither you nor your co-op partner dying