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51 of 51 (100%) Achievements Earned::

Personal Achievements
 

Wake Up Call

Survive the manual override
Unlocked Jun 30, 2017 @ 12:05pm

You Monster

Reunite with GLaDOS
Unlocked Jul 1, 2017 @ 7:47am

Undiscouraged

Complete the first Thermal Discouragement Beam test
Unlocked Jul 1, 2017 @ 7:51am

Bridge Over Troubling Water

Complete the first Hard Light Bridge test
Unlocked Feb 8, 2021 @ 9:15am

SaBOTour

Make a break for it
Unlocked Feb 8, 2021 @ 9:42am

Stalemate Associate

Press the button!
Unlocked Feb 8, 2021 @ 10:05am

Tater Tote

Carry science forward
Unlocked Feb 8, 2021 @ 2:21pm

Vertically Unchallenged

Master the Repulsion Gel
Unlocked Feb 8, 2021 @ 2:05pm

Stranger Than Friction

Master the Propulsion Gel
Unlocked Feb 8, 2021 @ 2:31pm

White Out

Complete the first Conversion Gel test
Unlocked Feb 8, 2021 @ 2:39pm

Tunnel of Funnel

Master the Excursion Funnel
Unlocked Feb 8, 2021 @ 5:38pm

Dual Pit Experiment

Do the same test twice
Unlocked Feb 8, 2021 @ 5:01pm

The Part Where He Kills You

This is that part
Unlocked Feb 8, 2021 @ 6:09pm

Lunacy

That just happened
Unlocked Feb 8, 2021 @ 6:29pm

Drop Box

Place a cube on a button without touching the cube
Unlocked Feb 8, 2021 @ 6:49pm

Overclocker

Complete Test Chamber 10 in 70 seconds
Unlocked Feb 8, 2021 @ 9:12am

Pit Boss

Show that pit who's boss
Unlocked Feb 8, 2021 @ 6:55pm

Preservation of Mass

Break the rules in Test Chamber 07
Unlocked Dec 29, 2018 @ 1:37pm

Pturretdactyl

Use an Aerial Faith Plate to launch a turret
Unlocked Feb 8, 2021 @ 6:52pm

Final Transmission

Find the hidden signal in one of the Rat Man's dens
Unlocked Feb 8, 2021 @ 6:51pm

Good Listener

Take GLaDOS' escape advice
Unlocked Feb 8, 2021 @ 9:42am

Scanned Alone

Stand in a defective turret detector
Unlocked Feb 8, 2021 @ 9:53am

No Hard Feelings

Save a turret from redemption
Unlocked Feb 8, 2021 @ 9:50am

Schrodinger's Catch

Catch a blue-painted box before it touches the ground
Unlocked Feb 8, 2021 @ 2:11pm

Ship Overboard

Discover the missing experiment
Unlocked Feb 8, 2021 @ 2:17pm

Door Prize

Examine all the vitrified test chamber doors
Unlocked Feb 8, 2021 @ 2:17pm

Portrait of a Lady

Find a hidden portrait
Unlocked Feb 8, 2021 @ 2:25pm

You Made Your Point

Refuse to solve the first test in Chapter 8
Unlocked Feb 8, 2021 @ 6:41pm

Smash TV

Break 11 test chamber monitors
Unlocked Feb 8, 2021 @ 7:45pm

High Five

Celebrate your cooperative calibration success
Unlocked Nov 29, 2016 @ 3:23am

Team Building

Complete all test chambers in the Team Building co-op course
Unlocked Nov 29, 2016 @ 3:38am

Confidence Building

Complete all test chambers in the Mass and Velocity co-op course
Unlocked Nov 29, 2016 @ 4:16am

Bridge Building

Complete all test chambers in the Hard-Light Surfaces co-op course
Unlocked Nov 29, 2016 @ 5:23am

Obstacle Building

Complete all test chambers in the Excursion Funnels co-op course
Unlocked Dec 2, 2016 @ 4:02am

You Saved Science

Complete all test chambers in all courses of co-op
Unlocked Dec 2, 2016 @ 5:11am

Iron Grip

Never lose a cube in Chamber 6 of the Mass and Velocity co-op course
Unlocked Dec 28, 2018 @ 3:31pm

Gesticul-8

Perform all 8 gestures of your own volition in co-op
Unlocked Dec 13, 2016 @ 6:44am

Can't Touch This

Dance in front of a turret blocked by a hard light bridge in co-op
Unlocked Nov 29, 2016 @ 5:01am

Empty Gesture

Drop your co-op partner in goo while they are gesturing by removing the bridge under them
Unlocked Nov 29, 2016 @ 4:38am

Party of Three

Find the hidden companion cube in co-op test chamber
Unlocked Dec 27, 2018 @ 3:25pm

Narbacular Drop

Place a portal under your co-op partner while they are gesturing
Unlocked Dec 27, 2018 @ 3:10pm

Professor Portal

After completing co-op, complete Calibration Course online with a friend who hasn’t played before
Unlocked Feb 7, 2021 @ 2:16pm

Air Show

Perform 2 aerial gestures before touching the ground in co-op
Unlocked Nov 29, 2016 @ 3:48am

Portal Conservation Society

Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements
Unlocked Dec 27, 2018 @ 4:39pm

Four Ring Circus

Enter 4 different portals without touching the ground in co-op
Unlocked Dec 28, 2018 @ 4:11pm

Triple Crown

Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each
Unlocked Dec 30, 2018 @ 2:32pm

Still Alive

Complete Course 4 with neither you nor your co-op partner dying
Unlocked Dec 29, 2018 @ 3:08pm

Asking for Trouble

Taunt GLaDOS in front of a camera in each of the five co-op courses
Unlocked Dec 28, 2018 @ 3:52pm

Rock Portal Scissors

Win 3 co-op games of rock-paper-scissors in a row
Unlocked Dec 2, 2016 @ 5:56am

Friends List With Benefits

While playing co-op, hug 3 different people on your friends list
Unlocked Feb 7, 2021 @ 2:36pm

Talent Show

Never lose a cube in Chamber 6 of the Mobility Gels co-op course
Unlocked Dec 28, 2018 @ 3:44pm