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51 of 51 (100%) Achievements Earned::

Personal Achievements
 

Wake Up Call

Survive the manual override
Unlocked Feb 16, 2015 @ 7:03am

You Monster

Reunite with GLaDOS
Unlocked Feb 16, 2015 @ 7:27am

Undiscouraged

Complete the first Thermal Discouragement Beam test
Unlocked Feb 16, 2015 @ 7:30am

Bridge Over Troubling Water

Complete the first Hard Light Bridge test
Unlocked Feb 16, 2015 @ 7:58am

SaBOTour

Make a break for it
Unlocked Feb 16, 2015 @ 8:38am

Stalemate Associate

Press the button!
Unlocked Feb 16, 2015 @ 9:35am

Tater Tote

Carry science forward
Unlocked Feb 16, 2015 @ 12:27pm

Vertically Unchallenged

Master the Repulsion Gel
Unlocked Feb 16, 2015 @ 10:18am

Stranger Than Friction

Master the Propulsion Gel
Unlocked Feb 16, 2015 @ 12:40pm

White Out

Complete the first Conversion Gel test
Unlocked Feb 16, 2015 @ 1:18pm

Tunnel of Funnel

Master the Excursion Funnel
Unlocked Feb 17, 2015 @ 9:16am

Dual Pit Experiment

Do the same test twice
Unlocked Feb 17, 2015 @ 8:34am

The Part Where He Kills You

This is that part
Unlocked Feb 18, 2015 @ 6:49am

Lunacy

That just happened
Unlocked Feb 18, 2015 @ 7:15am

Drop Box

Place a cube on a button without touching the cube
Unlocked Feb 16, 2015 @ 8:07am

Overclocker

Complete Test Chamber 10 in 70 seconds
Unlocked Apr 23, 2017 @ 7:55am

Pit Boss

Show that pit who's boss
Unlocked Oct 20, 2020 @ 10:06am

Preservation of Mass

Break the rules in Test Chamber 07
Unlocked Feb 16, 2015 @ 7:43am

Pturretdactyl

Use an Aerial Faith Plate to launch a turret
Unlocked Apr 23, 2017 @ 8:08am

Final Transmission

Find the hidden signal in one of the Rat Man's dens
Unlocked Apr 23, 2017 @ 6:44am

Good Listener

Take GLaDOS' escape advice
Unlocked Feb 16, 2015 @ 8:39am

Scanned Alone

Stand in a defective turret detector
Unlocked Feb 16, 2015 @ 8:51am

No Hard Feelings

Save a turret from redemption
Unlocked Feb 16, 2015 @ 8:48am

Schrodinger's Catch

Catch a blue-painted box before it touches the ground
Unlocked Apr 23, 2017 @ 8:45am

Ship Overboard

Discover the missing experiment
Unlocked Apr 23, 2017 @ 8:53am

Door Prize

Examine all the vitrified test chamber doors
Unlocked Apr 23, 2017 @ 8:53am

Portrait of a Lady

Find a hidden portrait
Unlocked Apr 23, 2017 @ 9:02am

You Made Your Point

Refuse to solve the first test in Chapter 8
Unlocked Apr 23, 2017 @ 9:07am

Smash TV

Break 11 test chamber monitors
Unlocked Oct 19, 2020 @ 10:35am

High Five

Celebrate your cooperative calibration success
Unlocked Apr 21, 2017 @ 2:33pm

Team Building

Complete all test chambers in the Team Building co-op course
Unlocked Apr 21, 2017 @ 3:03pm

Confidence Building

Complete all test chambers in the Mass and Velocity co-op course
Unlocked Apr 21, 2017 @ 3:56pm

Bridge Building

Complete all test chambers in the Hard-Light Surfaces co-op course
Unlocked Apr 21, 2017 @ 5:14pm

Obstacle Building

Complete all test chambers in the Excursion Funnels co-op course
Unlocked Apr 22, 2017 @ 3:34pm

You Saved Science

Complete all test chambers in all courses of co-op
Unlocked Apr 22, 2017 @ 5:06pm

Iron Grip

Never lose a cube in Chamber 6 of the Mass and Velocity co-op course
Unlocked Oct 19, 2020 @ 12:38pm

Gesticul-8

Perform all 8 gestures of your own volition in co-op
Unlocked Apr 22, 2017 @ 12:55pm

Can't Touch This

Dance in front of a turret blocked by a hard light bridge in co-op
Unlocked Oct 18, 2020 @ 4:14pm

Empty Gesture

Drop your co-op partner in goo while they are gesturing by removing the bridge under them
Unlocked Oct 18, 2020 @ 2:53pm

Party of Three

Find the hidden companion cube in co-op test chamber
Unlocked Oct 18, 2020 @ 6:39pm

Narbacular Drop

Place a portal under your co-op partner while they are gesturing
Unlocked Oct 18, 2020 @ 12:01pm

Professor Portal

After completing co-op, complete Calibration Course online with a friend who hasn’t played before
Unlocked Oct 18, 2020 @ 9:56am

Air Show

Perform 2 aerial gestures before touching the ground in co-op
Unlocked Apr 21, 2017 @ 3:12pm

Portal Conservation Society

Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements
Unlocked Oct 18, 2020 @ 7:08pm

Four Ring Circus

Enter 4 different portals without touching the ground in co-op
Unlocked Oct 18, 2020 @ 6:11pm

Triple Crown

Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each
Unlocked Oct 18, 2020 @ 8:34pm

Still Alive

Complete Course 4 with neither you nor your co-op partner dying
Unlocked Oct 18, 2020 @ 8:34pm

Asking for Trouble

Taunt GLaDOS in front of a camera in each of the five co-op courses
Unlocked Apr 22, 2017 @ 5:04pm

Rock Portal Scissors

Win 3 co-op games of rock-paper-scissors in a row
Unlocked May 5, 2017 @ 4:14pm

Friends List With Benefits

While playing co-op, hug 3 different people on your friends list
Unlocked Oct 18, 2020 @ 10:01am

Talent Show

Never lose a cube in Chamber 6 of the Mobility Gels co-op course
Unlocked Oct 19, 2020 @ 12:38pm