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51 of 51 (100%) Achievements Earned::

Personal Achievements
 

Wake Up Call

Survive the manual override
Unlocked 5 Dec @ 9:05am

You Monster

Reunite with GLaDOS
Unlocked 5 Dec @ 9:25am

Undiscouraged

Complete the first Thermal Discouragement Beam test
Unlocked 5 Dec @ 9:30am

Bridge Over Troubling Water

Complete the first Hard Light Bridge test
Unlocked 5 Dec @ 10:05am

SaBOTour

Make a break for it
Unlocked 5 Dec @ 10:38am

Stalemate Associate

Press the button!
Unlocked 5 Dec @ 11:15am

Tater Tote

Carry science forward
Unlocked 5 Dec @ 12:18pm

Vertically Unchallenged

Master the Repulsion Gel
Unlocked 5 Dec @ 11:50am

Stranger Than Friction

Master the Propulsion Gel
Unlocked 5 Dec @ 12:38pm

White Out

Complete the first Conversion Gel test
Unlocked 5 Dec @ 4:01pm

Tunnel of Funnel

Master the Excursion Funnel
Unlocked 5 Dec @ 2:54pm

Dual Pit Experiment

Do the same test twice
Unlocked 5 Dec @ 1:58pm

The Part Where He Kills You

This is that part
Unlocked 5 Dec @ 3:14pm

Lunacy

That just happened
Unlocked 5 Dec @ 3:43pm

Drop Box

Place a cube on a button without touching the cube
Unlocked 5 Dec @ 9:46am

Overclocker

Complete Test Chamber 10 in 70 seconds
Unlocked 5 Dec @ 10:01am

Pit Boss

Show that pit who's boss
Unlocked 5 Dec @ 3:18pm

Preservation of Mass

Break the rules in Test Chamber 07
Unlocked 5 Dec @ 9:50am

Pturretdactyl

Use an Aerial Faith Plate to launch a turret
Unlocked 5 Dec @ 9:42am

Final Transmission

Find the hidden signal in one of the Rat Man's dens
Unlocked 5 Dec @ 9:44am

Good Listener

Take GLaDOS' escape advice
Unlocked 5 Dec @ 10:39am

Scanned Alone

Stand in a defective turret detector
Unlocked 5 Dec @ 10:59am

No Hard Feelings

Save a turret from redemption
Unlocked 5 Dec @ 10:50am

Schrodinger's Catch

Catch a blue-painted box before it touches the ground
Unlocked 5 Dec @ 12:05pm

Ship Overboard

Discover the missing experiment
Unlocked 5 Dec @ 12:13pm

Door Prize

Examine all the vitrified test chamber doors
Unlocked 5 Dec @ 12:13pm

Portrait of a Lady

Find a hidden portrait
Unlocked 5 Dec @ 12:24pm

You Made Your Point

Refuse to solve the first test in Chapter 8
Unlocked 5 Dec @ 1:57pm

Smash TV

Break 11 test chamber monitors
Unlocked 5 Dec @ 3:02pm

High Five

Celebrate your cooperative calibration success
Unlocked 30 May @ 1:50pm

Team Building

Complete all test chambers in the Team Building co-op course
Unlocked 31 May @ 5:30pm

Confidence Building

Complete all test chambers in the Mass and Velocity co-op course
Unlocked 4 Jun @ 12:58pm

Bridge Building

Complete all test chambers in the Hard-Light Surfaces co-op course
Unlocked 4 Jun @ 1:42pm

Obstacle Building

Complete all test chambers in the Excursion Funnels co-op course
Unlocked 16 Jun @ 12:05am

You Saved Science

Complete all test chambers in all courses of co-op
Unlocked 16 Jun @ 1:15am

Iron Grip

Never lose a cube in Chamber 6 of the Mass and Velocity co-op course
Unlocked 28 Oct @ 12:14am

Gesticul-8

Perform all 8 gestures of your own volition in co-op
Unlocked 15 Jun @ 11:34pm

Can't Touch This

Dance in front of a turret blocked by a hard light bridge in co-op
Unlocked 4 Jun @ 1:31pm

Empty Gesture

Drop your co-op partner in goo while they are gesturing by removing the bridge under them
Unlocked 27 Oct @ 11:24pm

Party of Three

Find the hidden companion cube in co-op test chamber
Unlocked 28 Oct @ 12:33am

Narbacular Drop

Place a portal under your co-op partner while they are gesturing
Unlocked 26 Oct @ 12:46am

Professor Portal

After completing co-op, complete Calibration Course online with a friend who hasn’t played before
Unlocked 5 Dec @ 7:43pm

Air Show

Perform 2 aerial gestures before touching the ground in co-op
Unlocked 31 May @ 5:35pm

Portal Conservation Society

Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements
Unlocked 26 Oct @ 1:26am

Four Ring Circus

Enter 4 different portals without touching the ground in co-op
Unlocked 27 Oct @ 11:32pm

Triple Crown

Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each
Unlocked 27 Oct @ 11:46pm

Still Alive

Complete Course 4 with neither you nor your co-op partner dying
Unlocked 28 Oct @ 10:36pm

Asking for Trouble

Taunt GLaDOS in front of a camera in each of the five co-op courses
Unlocked 26 Oct @ 1:15am

Rock Portal Scissors

Win 3 co-op games of rock-paper-scissors in a row
Unlocked 26 Oct @ 1:06am

Friends List With Benefits

While playing co-op, hug 3 different people on your friends list
Unlocked 5 Dec @ 7:43pm

Talent Show

Never lose a cube in Chamber 6 of the Mobility Gels co-op course
Unlocked 28 Oct @ 12:02am