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51 of 51 (100%) Achievements Earned::

Personal Achievements
 

Wake Up Call

Survive the manual override
Unlocked May 2, 2012 @ 4:23pm

You Monster

Reunite with GLaDOS
Unlocked May 2, 2012 @ 4:44pm

Undiscouraged

Complete the first Thermal Discouragement Beam test
Unlocked May 2, 2012 @ 4:47pm

Bridge Over Troubling Water

Complete the first Hard Light Bridge test
Unlocked May 2, 2012 @ 5:08pm

SaBOTour

Make a break for it
Unlocked May 2, 2012 @ 5:35pm

Stalemate Associate

Press the button!
Unlocked May 24, 2012 @ 11:59pm

Tater Tote

Carry science forward
Unlocked Feb 20, 2014 @ 1:30am

Vertically Unchallenged

Master the Repulsion Gel
Unlocked Feb 16, 2013 @ 9:05pm

Stranger Than Friction

Master the Propulsion Gel
Unlocked Aug 16, 2021 @ 9:32am

White Out

Complete the first Conversion Gel test
Unlocked Aug 16, 2021 @ 9:39am

Tunnel of Funnel

Master the Excursion Funnel
Unlocked Jan 9, 2022 @ 5:07am

Dual Pit Experiment

Do the same test twice
Unlocked Jan 9, 2022 @ 4:02am

The Part Where He Kills You

This is that part
Unlocked Jan 9, 2022 @ 5:29am

Lunacy

That just happened
Unlocked Jan 10, 2022 @ 2:52am

Drop Box

Place a cube on a button without touching the cube
Unlocked Jan 9, 2022 @ 3:46am

Overclocker

Complete Test Chamber 10 in 70 seconds
Unlocked Jan 10, 2022 @ 3:09am

Pit Boss

Show that pit who's boss
Unlocked Jan 9, 2022 @ 5:33am

Preservation of Mass

Break the rules in Test Chamber 07
Unlocked Jan 9, 2022 @ 3:54am

Pturretdactyl

Use an Aerial Faith Plate to launch a turret
Unlocked Jan 9, 2022 @ 3:44am

Final Transmission

Find the hidden signal in one of the Rat Man's dens
Unlocked Jan 9, 2022 @ 3:49am

Good Listener

Take GLaDOS' escape advice
Unlocked May 2, 2012 @ 5:36pm

Scanned Alone

Stand in a defective turret detector
Unlocked May 2, 2012 @ 5:49pm

No Hard Feelings

Save a turret from redemption
Unlocked Jan 10, 2022 @ 3:21am

Schrodinger's Catch

Catch a blue-painted box before it touches the ground
Unlocked Jan 10, 2022 @ 5:54am

Ship Overboard

Discover the missing experiment
Unlocked Jan 10, 2022 @ 5:59am

Door Prize

Examine all the vitrified test chamber doors
Unlocked Jan 10, 2022 @ 6:00am

Portrait of a Lady

Find a hidden portrait
Unlocked Jan 10, 2022 @ 6:03am

You Made Your Point

Refuse to solve the first test in Chapter 8
Unlocked Jan 9, 2022 @ 4:05am

Smash TV

Break 11 test chamber monitors
Unlocked Jan 9, 2022 @ 5:26am

High Five

Celebrate your cooperative calibration success
Unlocked Mar 29, 2012 @ 5:56pm

Team Building

Complete all test chambers in the Team Building co-op course
Unlocked Sep 8, 2017 @ 12:31am

Confidence Building

Complete all test chambers in the Mass and Velocity co-op course
Unlocked Jan 15, 2022 @ 2:07am

Bridge Building

Complete all test chambers in the Hard-Light Surfaces co-op course
Unlocked Jan 8, 2022 @ 6:38pm

Obstacle Building

Complete all test chambers in the Excursion Funnels co-op course
Unlocked Jan 15, 2022 @ 5:18am

You Saved Science

Complete all test chambers in all courses of co-op
Unlocked Jan 15, 2022 @ 8:12pm

Iron Grip

Never lose a cube in Chamber 6 of the Mass and Velocity co-op course
Unlocked Jan 15, 2022 @ 3:26am

Gesticul-8

Perform all 8 gestures of your own volition in co-op
Unlocked Jan 15, 2022 @ 4:44am

Can't Touch This

Dance in front of a turret blocked by a hard light bridge in co-op
Unlocked Jan 15, 2022 @ 5:32am

Empty Gesture

Drop your co-op partner in goo while they are gesturing by removing the bridge under them
Unlocked Jan 8, 2022 @ 6:11pm

Party of Three

Find the hidden companion cube in co-op test chamber
Unlocked Jan 15, 2022 @ 5:31am

Narbacular Drop

Place a portal under your co-op partner while they are gesturing
Unlocked Jan 15, 2022 @ 3:51am

Professor Portal

After completing co-op, complete Calibration Course online with a friend who hasn’t played before
Unlocked Jan 15, 2022 @ 8:23pm

Air Show

Perform 2 aerial gestures before touching the ground in co-op
Unlocked Sep 8, 2017 @ 12:30am

Portal Conservation Society

Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements
Unlocked Jan 15, 2022 @ 6:44am

Four Ring Circus

Enter 4 different portals without touching the ground in co-op
Unlocked Jan 15, 2022 @ 5:43am

Triple Crown

Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each
Unlocked Jan 15, 2022 @ 5:57am

Still Alive

Complete Course 4 with neither you nor your co-op partner dying
Unlocked Jan 15, 2022 @ 7:39am

Asking for Trouble

Taunt GLaDOS in front of a camera in each of the five co-op courses
Unlocked Jan 15, 2022 @ 5:23am

Rock Portal Scissors

Win 3 co-op games of rock-paper-scissors in a row
Unlocked Jan 15, 2022 @ 4:10am

Friends List With Benefits

While playing co-op, hug 3 different people on your friends list
Unlocked Jan 15, 2022 @ 8:23pm

Talent Show

Never lose a cube in Chamber 6 of the Mobility Gels co-op course
Unlocked Jan 15, 2022 @ 7:45pm