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51 of 51 (100%) Achievements Earned::

Personal Achievements
 

Wake Up Call

Survive the manual override
Unlocked 20 Sep, 2011 @ 12:57pm

You Monster

Reunite with GLaDOS
Unlocked 27 Aug, 2012 @ 8:13am

Undiscouraged

Complete the first Thermal Discouragement Beam test
Unlocked 28 Mar, 2012 @ 5:57pm

Bridge Over Troubling Water

Complete the first Hard Light Bridge test
Unlocked 28 Mar, 2012 @ 5:57pm

SaBOTour

Make a break for it
Unlocked 27 Aug, 2012 @ 8:13am

Stalemate Associate

Press the button!
Unlocked 24 Feb, 2012 @ 8:49pm

Tater Tote

Carry science forward
Unlocked 27 Aug, 2012 @ 8:13am

Vertically Unchallenged

Master the Repulsion Gel
Unlocked 27 Aug, 2012 @ 8:13am

Stranger Than Friction

Master the Propulsion Gel
Unlocked 27 Aug, 2012 @ 8:13am

White Out

Complete the first Conversion Gel test
Unlocked 27 Aug, 2012 @ 8:13am

Tunnel of Funnel

Master the Excursion Funnel
Unlocked 13 Jan, 2012 @ 6:59pm

Dual Pit Experiment

Do the same test twice
Unlocked 29 Dec, 2011 @ 9:10am

The Part Where He Kills You

This is that part
Unlocked 13 Jan, 2012 @ 7:32pm

Lunacy

That just happened
Unlocked 13 Jan, 2012 @ 7:57pm

Drop Box

Place a cube on a button without touching the cube
Unlocked 1 Jun, 2012 @ 5:37pm

Overclocker

Complete Test Chamber 10 in 70 seconds
Unlocked 31 Aug, 2013 @ 8:57pm

Pit Boss

Show that pit who's boss
Unlocked 31 Aug, 2013 @ 8:33pm

Preservation of Mass

Break the rules in Test Chamber 07
Unlocked 17 Jul, 2013 @ 4:23pm

Pturretdactyl

Use an Aerial Faith Plate to launch a turret
Unlocked 28 Mar, 2012 @ 5:57pm

Final Transmission

Find the hidden signal in one of the Rat Man's dens
Unlocked 31 Aug, 2013 @ 9:08pm

Good Listener

Take GLaDOS' escape advice
Unlocked 12 Oct, 2012 @ 9:54am

Scanned Alone

Stand in a defective turret detector
Unlocked 12 Oct, 2012 @ 9:54am

No Hard Feelings

Save a turret from redemption
Unlocked 27 Aug, 2012 @ 8:13am

Schrodinger's Catch

Catch a blue-painted box before it touches the ground
Unlocked 25 Aug, 2013 @ 9:39pm

Ship Overboard

Discover the missing experiment
Unlocked 25 Aug, 2013 @ 9:43pm

Door Prize

Examine all the vitrified test chamber doors
Unlocked 31 Aug, 2013 @ 8:17pm

Portrait of a Lady

Find a hidden portrait
Unlocked 25 Aug, 2013 @ 9:08pm

You Made Your Point

Refuse to solve the first test in Chapter 8
Unlocked 31 Aug, 2013 @ 8:26pm

Smash TV

Break 11 test chamber monitors
Unlocked 29 Mar, 2014 @ 12:50pm

High Five

Celebrate your cooperative calibration success
Unlocked 25 Nov, 2011 @ 8:53am

Team Building

Complete all test chambers in the Team Building co-op course
Unlocked 25 Nov, 2011 @ 9:09am

Confidence Building

Complete all test chambers in the Mass and Velocity co-op course
Unlocked 9 May, 2012 @ 12:56pm

Bridge Building

Complete all test chambers in the Hard-Light Surfaces co-op course
Unlocked 22 May, 2012 @ 10:13am

Obstacle Building

Complete all test chambers in the Excursion Funnels co-op course
Unlocked 22 May, 2012 @ 11:12am

You Saved Science

Complete all test chambers in all courses of co-op
Unlocked 4 Jul, 2013 @ 10:22pm

Iron Grip

Never lose a cube in Chamber 6 of the Mass and Velocity co-op course
Unlocked 23 Mar, 2014 @ 5:00pm

Gesticul-8

Perform all 8 gestures of your own volition in co-op
Unlocked 22 May, 2012 @ 10:39am

Can't Touch This

Dance in front of a turret blocked by a hard light bridge in co-op
Unlocked 3 Jul, 2013 @ 8:32pm

Empty Gesture

Drop your co-op partner in goo while they are gesturing by removing the bridge under them
Unlocked 4 Jul, 2013 @ 9:43pm

Party of Three

Find the hidden companion cube in co-op test chamber
Unlocked 23 Mar, 2014 @ 5:52pm

Narbacular Drop

Place a portal under your co-op partner while they are gesturing
Unlocked 4 Jul, 2013 @ 9:41pm

Professor Portal

After completing co-op, complete Calibration Course online with a friend who hasn’t played before
Unlocked 15 Oct, 2013 @ 6:11pm

Air Show

Perform 2 aerial gestures before touching the ground in co-op
Unlocked 22 May, 2012 @ 11:08am

Portal Conservation Society

Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements
Unlocked 23 Mar, 2014 @ 5:18pm

Four Ring Circus

Enter 4 different portals without touching the ground in co-op
Unlocked 23 Mar, 2014 @ 5:37pm

Triple Crown

Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each
Unlocked 3 Apr, 2014 @ 6:20pm

Still Alive

Complete Course 4 with neither you nor your co-op partner dying
Unlocked 4 Apr, 2014 @ 11:14am

Asking for Trouble

Taunt GLaDOS in front of a camera in each of the five co-op courses
Unlocked 15 Oct, 2013 @ 7:36pm

Rock Portal Scissors

Win 3 co-op games of rock-paper-scissors in a row
Unlocked 23 Mar, 2014 @ 5:41pm

Friends List With Benefits

While playing co-op, hug 3 different people on your friends list
Unlocked 15 Oct, 2013 @ 6:24pm

Talent Show

Never lose a cube in Chamber 6 of the Mobility Gels co-op course
Unlocked 23 Mar, 2014 @ 5:29pm