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51 of 51 (100%) Achievements Earned::

Personal Achievements
 

Wake Up Call

Survive the manual override
Unlocked Dec 21, 2018 @ 11:28pm

You Monster

Reunite with GLaDOS
Unlocked Dec 21, 2018 @ 11:47pm

Undiscouraged

Complete the first Thermal Discouragement Beam test
Unlocked Dec 21, 2018 @ 11:51pm

Bridge Over Troubling Water

Complete the first Hard Light Bridge test
Unlocked Dec 22, 2018 @ 12:21am

SaBOTour

Make a break for it
Unlocked Dec 22, 2018 @ 1:00am

Stalemate Associate

Press the button!
Unlocked Dec 22, 2018 @ 1:27am

Tater Tote

Carry science forward
Unlocked Dec 22, 2018 @ 7:31am

Vertically Unchallenged

Master the Repulsion Gel
Unlocked Dec 22, 2018 @ 7:08am

Stranger Than Friction

Master the Propulsion Gel
Unlocked Dec 22, 2018 @ 7:45am

White Out

Complete the first Conversion Gel test
Unlocked Mar 27, 2019 @ 12:16am

Tunnel of Funnel

Master the Excursion Funnel
Unlocked Apr 10, 2019 @ 7:39am

Dual Pit Experiment

Do the same test twice
Unlocked Apr 5, 2019 @ 4:34pm

The Part Where He Kills You

This is that part
Unlocked Apr 10, 2019 @ 7:41am

Lunacy

That just happened
Unlocked Apr 10, 2019 @ 8:01am

Drop Box

Place a cube on a button without touching the cube
Unlocked Dec 22, 2018 @ 12:04am

Overclocker

Complete Test Chamber 10 in 70 seconds
Unlocked Apr 18, 2019 @ 2:50am

Pit Boss

Show that pit who's boss
Unlocked Apr 10, 2019 @ 8:01am

Preservation of Mass

Break the rules in Test Chamber 07
Unlocked Dec 22, 2018 @ 12:07am

Pturretdactyl

Use an Aerial Faith Plate to launch a turret
Unlocked Apr 18, 2019 @ 2:29am

Final Transmission

Find the hidden signal in one of the Rat Man's dens
Unlocked Apr 18, 2019 @ 2:32am

Good Listener

Take GLaDOS' escape advice
Unlocked Dec 22, 2018 @ 1:01am

Scanned Alone

Stand in a defective turret detector
Unlocked Apr 18, 2019 @ 3:00am

No Hard Feelings

Save a turret from redemption
Unlocked Dec 22, 2018 @ 1:11am

Schrodinger's Catch

Catch a blue-painted box before it touches the ground
Unlocked Apr 18, 2019 @ 3:25am

Ship Overboard

Discover the missing experiment
Unlocked Apr 18, 2019 @ 3:29am

Door Prize

Examine all the vitrified test chamber doors
Unlocked Apr 18, 2019 @ 3:29am

Portrait of a Lady

Find a hidden portrait
Unlocked Apr 18, 2019 @ 3:37am

You Made Your Point

Refuse to solve the first test in Chapter 8
Unlocked Apr 18, 2019 @ 3:47am

Smash TV

Break 11 test chamber monitors
Unlocked Apr 18, 2019 @ 3:55am

High Five

Celebrate your cooperative calibration success
Unlocked Dec 22, 2018 @ 6:48am

Team Building

Complete all test chambers in the Team Building co-op course
Unlocked Feb 1, 2019 @ 5:34am

Confidence Building

Complete all test chambers in the Mass and Velocity co-op course
Unlocked Feb 1, 2019 @ 6:39am

Bridge Building

Complete all test chambers in the Hard-Light Surfaces co-op course
Unlocked Feb 1, 2019 @ 8:03am

Obstacle Building

Complete all test chambers in the Excursion Funnels co-op course
Unlocked Feb 2, 2019 @ 9:21am

You Saved Science

Complete all test chambers in all courses of co-op
Unlocked May 18, 2019 @ 4:07am

Iron Grip

Never lose a cube in Chamber 6 of the Mass and Velocity co-op course
Unlocked Feb 2, 2019 @ 7:39am

Gesticul-8

Perform all 8 gestures of your own volition in co-op
Unlocked Feb 2, 2019 @ 2:16am

Can't Touch This

Dance in front of a turret blocked by a hard light bridge in co-op
Unlocked Feb 1, 2019 @ 7:31am

Empty Gesture

Drop your co-op partner in goo while they are gesturing by removing the bridge under them
Unlocked Feb 1, 2019 @ 6:44am

Party of Three

Find the hidden companion cube in co-op test chamber
Unlocked Oct 26, 2019 @ 7:37am

Narbacular Drop

Place a portal under your co-op partner while they are gesturing
Unlocked Feb 1, 2019 @ 5:43am

Professor Portal

After completing co-op, complete Calibration Course online with a friend who hasn’t played before
Unlocked Oct 25, 2019 @ 5:26am

Air Show

Perform 2 aerial gestures before touching the ground in co-op
Unlocked Feb 1, 2019 @ 5:45am

Portal Conservation Society

Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements
Unlocked Oct 25, 2019 @ 7:01am

Four Ring Circus

Enter 4 different portals without touching the ground in co-op
Unlocked Oct 26, 2019 @ 7:24am

Triple Crown

Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each
Unlocked Oct 25, 2019 @ 7:10am

Still Alive

Complete Course 4 with neither you nor your co-op partner dying
Unlocked Oct 26, 2019 @ 6:45am

Asking for Trouble

Taunt GLaDOS in front of a camera in each of the five co-op courses
Unlocked May 17, 2019 @ 7:00am

Rock Portal Scissors

Win 3 co-op games of rock-paper-scissors in a row
Unlocked Feb 1, 2019 @ 6:07am

Friends List With Benefits

While playing co-op, hug 3 different people on your friends list
Unlocked Nov 27, 2021 @ 4:42am

Talent Show

Never lose a cube in Chamber 6 of the Mobility Gels co-op course
Unlocked Oct 25, 2019 @ 7:37am