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51 of 51 (100%) Achievements Earned::

Personal Achievements
 

Wake Up Call

Survive the manual override
Unlocked Feb 16, 2017 @ 3:27pm

You Monster

Reunite with GLaDOS
Unlocked Feb 16, 2017 @ 4:34pm

Undiscouraged

Complete the first Thermal Discouragement Beam test
Unlocked Feb 16, 2017 @ 4:48pm

Bridge Over Troubling Water

Complete the first Hard Light Bridge test
Unlocked Feb 18, 2017 @ 5:38pm

SaBOTour

Make a break for it
Unlocked Feb 19, 2017 @ 4:09pm

Stalemate Associate

Press the button!
Unlocked Feb 19, 2017 @ 4:53pm

Tater Tote

Carry science forward
Unlocked Feb 19, 2017 @ 7:21pm

Vertically Unchallenged

Master the Repulsion Gel
Unlocked Feb 19, 2017 @ 5:56pm

Stranger Than Friction

Master the Propulsion Gel
Unlocked Feb 23, 2017 @ 5:35pm

White Out

Complete the first Conversion Gel test
Unlocked Feb 28, 2017 @ 5:15pm

Tunnel of Funnel

Master the Excursion Funnel
Unlocked Mar 3, 2017 @ 5:05pm

Dual Pit Experiment

Do the same test twice
Unlocked Mar 1, 2017 @ 4:11pm

The Part Where He Kills You

This is that part
Unlocked Mar 4, 2017 @ 7:43am

Lunacy

That just happened
Unlocked Mar 4, 2017 @ 9:11am

Drop Box

Place a cube on a button without touching the cube
Unlocked Apr 15, 2017 @ 9:16am

Overclocker

Complete Test Chamber 10 in 70 seconds
Unlocked Jul 1, 2019 @ 11:15am

Pit Boss

Show that pit who's boss
Unlocked Mar 4, 2017 @ 7:45am

Preservation of Mass

Break the rules in Test Chamber 07
Unlocked Apr 15, 2017 @ 9:42am

Pturretdactyl

Use an Aerial Faith Plate to launch a turret
Unlocked Jul 1, 2019 @ 11:27am

Final Transmission

Find the hidden signal in one of the Rat Man's dens
Unlocked Feb 17, 2017 @ 3:16pm

Good Listener

Take GLaDOS' escape advice
Unlocked Feb 19, 2017 @ 4:10pm

Scanned Alone

Stand in a defective turret detector
Unlocked Feb 19, 2017 @ 4:35pm

No Hard Feelings

Save a turret from redemption
Unlocked Feb 19, 2017 @ 4:31pm

Schrodinger's Catch

Catch a blue-painted box before it touches the ground
Unlocked Jul 5, 2019 @ 11:12am

Ship Overboard

Discover the missing experiment
Unlocked Oct 19, 2018 @ 12:28pm

Door Prize

Examine all the vitrified test chamber doors
Unlocked Oct 27, 2021 @ 2:29am

Portrait of a Lady

Find a hidden portrait
Unlocked Jul 5, 2019 @ 11:01am

You Made Your Point

Refuse to solve the first test in Chapter 8
Unlocked Jun 22, 2019 @ 12:18pm

Smash TV

Break 11 test chamber monitors
Unlocked Apr 18, 2021 @ 5:44pm

High Five

Celebrate your cooperative calibration success
Unlocked Feb 12, 2017 @ 11:07am

Team Building

Complete all test chambers in the Team Building co-op course
Unlocked Feb 12, 2017 @ 12:03pm

Confidence Building

Complete all test chambers in the Mass and Velocity co-op course
Unlocked Jun 22, 2019 @ 12:06pm

Bridge Building

Complete all test chambers in the Hard-Light Surfaces co-op course
Unlocked Mar 29, 2017 @ 1:55pm

Obstacle Building

Complete all test chambers in the Excursion Funnels co-op course
Unlocked Jul 5, 2019 @ 10:48am

You Saved Science

Complete all test chambers in all courses of co-op
Unlocked Jul 5, 2019 @ 10:48am

Iron Grip

Never lose a cube in Chamber 6 of the Mass and Velocity co-op course
Unlocked Jan 18, 2021 @ 9:27am

Gesticul-8

Perform all 8 gestures of your own volition in co-op
Unlocked Jul 5, 2019 @ 9:48am

Can't Touch This

Dance in front of a turret blocked by a hard light bridge in co-op
Unlocked Jul 22, 2021 @ 10:43am

Empty Gesture

Drop your co-op partner in goo while they are gesturing by removing the bridge under them
Unlocked Dec 12, 2021 @ 11:54pm

Party of Three

Find the hidden companion cube in co-op test chamber
Unlocked Dec 13, 2021 @ 12:51am

Narbacular Drop

Place a portal under your co-op partner while they are gesturing
Unlocked Jul 1, 2019 @ 11:40am

Professor Portal

After completing co-op, complete Calibration Course online with a friend who hasn’t played before
Unlocked Jul 5, 2019 @ 12:54pm

Air Show

Perform 2 aerial gestures before touching the ground in co-op
Unlocked Feb 26, 2017 @ 1:39pm

Portal Conservation Society

Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements
Unlocked Dec 13, 2021 @ 12:07am

Four Ring Circus

Enter 4 different portals without touching the ground in co-op
Unlocked Dec 12, 2021 @ 11:50pm

Triple Crown

Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each
Unlocked Jan 18, 2021 @ 9:28am

Still Alive

Complete Course 4 with neither you nor your co-op partner dying
Unlocked Dec 27, 2022 @ 11:04pm

Asking for Trouble

Taunt GLaDOS in front of a camera in each of the five co-op courses
Unlocked Apr 22, 2017 @ 9:00am

Rock Portal Scissors

Win 3 co-op games of rock-paper-scissors in a row
Unlocked Mar 6, 2017 @ 3:34pm

Friends List With Benefits

While playing co-op, hug 3 different people on your friends list
Unlocked Jul 5, 2019 @ 12:56pm

Talent Show

Never lose a cube in Chamber 6 of the Mobility Gels co-op course
Unlocked Dec 13, 2021 @ 12:27am