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51 of 51 (100%) Achievements Earned::

Personal Achievements
 

Wake Up Call

Survive the manual override
Unlocked 4 Jan, 2014 @ 1:15am

You Monster

Reunite with GLaDOS
Unlocked 8 Jan, 2014 @ 2:12am

Undiscouraged

Complete the first Thermal Discouragement Beam test
Unlocked 9 Jan, 2014 @ 6:51am

Bridge Over Troubling Water

Complete the first Hard Light Bridge test
Unlocked 14 Jan, 2014 @ 9:56pm

SaBOTour

Make a break for it
Unlocked 5 Mar, 2014 @ 12:57pm

Stalemate Associate

Press the button!
Unlocked 5 Mar, 2014 @ 12:57pm

Tater Tote

Carry science forward
Unlocked 5 Mar, 2014 @ 12:57pm

Vertically Unchallenged

Master the Repulsion Gel
Unlocked 5 Mar, 2014 @ 12:57pm

Stranger Than Friction

Master the Propulsion Gel
Unlocked 5 Mar, 2014 @ 12:57pm

White Out

Complete the first Conversion Gel test
Unlocked 5 Mar, 2014 @ 12:57pm

Tunnel of Funnel

Master the Excursion Funnel
Unlocked 28 Apr, 2014 @ 2:47am

Dual Pit Experiment

Do the same test twice
Unlocked 27 Apr, 2014 @ 7:43pm

The Part Where He Kills You

This is that part
Unlocked 28 Apr, 2014 @ 2:54am

Lunacy

That just happened
Unlocked 28 Apr, 2014 @ 6:24pm

Drop Box

Place a cube on a button without touching the cube
Unlocked 14 Jan, 2014 @ 10:09pm

Overclocker

Complete Test Chamber 10 in 70 seconds
Unlocked 29 Apr, 2014 @ 11:44am

Pit Boss

Show that pit who's boss
Unlocked 28 Apr, 2014 @ 6:56pm

Preservation of Mass

Break the rules in Test Chamber 07
Unlocked 13 Jan, 2014 @ 10:55pm

Pturretdactyl

Use an Aerial Faith Plate to launch a turret
Unlocked 29 Apr, 2014 @ 2:33am

Final Transmission

Find the hidden signal in one of the Rat Man's dens
Unlocked 29 Apr, 2014 @ 11:49am

Good Listener

Take GLaDOS' escape advice
Unlocked 28 Apr, 2014 @ 7:13pm

Scanned Alone

Stand in a defective turret detector
Unlocked 29 Apr, 2014 @ 2:44am

No Hard Feelings

Save a turret from redemption
Unlocked 29 Apr, 2014 @ 2:41am

Schrodinger's Catch

Catch a blue-painted box before it touches the ground
Unlocked 29 Apr, 2014 @ 10:59am

Ship Overboard

Discover the missing experiment
Unlocked 29 Apr, 2014 @ 11:06am

Door Prize

Examine all the vitrified test chamber doors
Unlocked 29 Apr, 2014 @ 2:07pm

Portrait of a Lady

Find a hidden portrait
Unlocked 29 Apr, 2014 @ 11:14am

You Made Your Point

Refuse to solve the first test in Chapter 8
Unlocked 29 Apr, 2014 @ 11:24am

Smash TV

Break 11 test chamber monitors
Unlocked 1 May, 2014 @ 6:42pm

High Five

Celebrate your cooperative calibration success
Unlocked 13 Jan, 2014 @ 2:26pm

Team Building

Complete all test chambers in the Team Building co-op course
Unlocked 13 Jan, 2014 @ 2:52pm

Confidence Building

Complete all test chambers in the Mass and Velocity co-op course
Unlocked 27 Jan, 2014 @ 2:04pm

Bridge Building

Complete all test chambers in the Hard-Light Surfaces co-op course
Unlocked 27 Jan, 2014 @ 3:34pm

Obstacle Building

Complete all test chambers in the Excursion Funnels co-op course
Unlocked 23 Apr, 2014 @ 9:06pm

You Saved Science

Complete all test chambers in all courses of co-op
Unlocked 24 Apr, 2014 @ 5:16pm

Iron Grip

Never lose a cube in Chamber 6 of the Mass and Velocity co-op course
Unlocked 4 Jul, 2014 @ 4:53pm

Gesticul-8

Perform all 8 gestures of your own volition in co-op
Unlocked 23 Apr, 2014 @ 8:25pm

Can't Touch This

Dance in front of a turret blocked by a hard light bridge in co-op
Unlocked 29 Apr, 2014 @ 5:46pm

Empty Gesture

Drop your co-op partner in goo while they are gesturing by removing the bridge under them
Unlocked 29 Apr, 2014 @ 5:50pm

Party of Three

Find the hidden companion cube in co-op test chamber
Unlocked 29 Apr, 2014 @ 6:01pm

Narbacular Drop

Place a portal under your co-op partner while they are gesturing
Unlocked 29 Apr, 2014 @ 5:44pm

Professor Portal

After completing co-op, complete Calibration Course online with a friend who hasn’t played before
Unlocked 3 Jul, 2014 @ 11:09am

Air Show

Perform 2 aerial gestures before touching the ground in co-op
Unlocked 13 Jan, 2014 @ 3:00pm

Portal Conservation Society

Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements
Unlocked 29 Apr, 2014 @ 7:14pm

Four Ring Circus

Enter 4 different portals without touching the ground in co-op
Unlocked 29 Apr, 2014 @ 6:08pm

Triple Crown

Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each
Unlocked 4 Jul, 2014 @ 5:40pm

Still Alive

Complete Course 4 with neither you nor your co-op partner dying
Unlocked 29 Apr, 2014 @ 7:00pm

Asking for Trouble

Taunt GLaDOS in front of a camera in each of the five co-op courses
Unlocked 24 Apr, 2014 @ 5:14pm

Rock Portal Scissors

Win 3 co-op games of rock-paper-scissors in a row
Unlocked 29 Apr, 2014 @ 6:12pm

Friends List With Benefits

While playing co-op, hug 3 different people on your friends list
Unlocked 4 Jul, 2014 @ 5:23pm

Talent Show

Never lose a cube in Chamber 6 of the Mobility Gels co-op course
Unlocked 4 Jul, 2014 @ 4:16pm