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51 of 51 (100%) Achievements Earned::

Personal Achievements
 

Wake Up Call

Survive the manual override
Unlocked 23 Dec, 2019 @ 2:05pm

You Monster

Reunite with GLaDOS
Unlocked 23 Dec, 2019 @ 2:23pm

Undiscouraged

Complete the first Thermal Discouragement Beam test
Unlocked 24 Dec, 2019 @ 12:24pm

Bridge Over Troubling Water

Complete the first Hard Light Bridge test
Unlocked 24 Dec, 2019 @ 1:06pm

SaBOTour

Make a break for it
Unlocked 24 Dec, 2019 @ 1:36pm

Stalemate Associate

Press the button!
Unlocked 24 Dec, 2019 @ 1:53pm

Tater Tote

Carry science forward
Unlocked 24 Dec, 2019 @ 5:52pm

Vertically Unchallenged

Master the Repulsion Gel
Unlocked 24 Dec, 2019 @ 2:15pm

Stranger Than Friction

Master the Propulsion Gel
Unlocked 24 Dec, 2019 @ 6:03pm

White Out

Complete the first Conversion Gel test
Unlocked 24 Dec, 2019 @ 6:10pm

Tunnel of Funnel

Master the Excursion Funnel
Unlocked 24 Dec, 2019 @ 7:06pm

Dual Pit Experiment

Do the same test twice
Unlocked 24 Dec, 2019 @ 6:32pm

The Part Where He Kills You

This is that part
Unlocked 24 Dec, 2019 @ 7:21pm

Lunacy

That just happened
Unlocked 24 Dec, 2019 @ 7:40pm

Drop Box

Place a cube on a button without touching the cube
Unlocked 23 Dec, 2019 @ 2:10pm

Overclocker

Complete Test Chamber 10 in 70 seconds
Unlocked 17 Apr, 2021 @ 6:48am

Pit Boss

Show that pit who's boss
Unlocked 17 Apr, 2021 @ 7:42am

Preservation of Mass

Break the rules in Test Chamber 07
Unlocked 24 Dec, 2019 @ 12:56pm

Pturretdactyl

Use an Aerial Faith Plate to launch a turret
Unlocked 17 Apr, 2021 @ 7:49am

Final Transmission

Find the hidden signal in one of the Rat Man's dens
Unlocked 17 Apr, 2021 @ 7:58am

Good Listener

Take GLaDOS' escape advice
Unlocked 14 Apr, 2021 @ 4:15pm

Scanned Alone

Stand in a defective turret detector
Unlocked 14 Apr, 2021 @ 4:26pm

No Hard Feelings

Save a turret from redemption
Unlocked 14 Apr, 2021 @ 4:24pm

Schrodinger's Catch

Catch a blue-painted box before it touches the ground
Unlocked 14 Apr, 2021 @ 5:02pm

Ship Overboard

Discover the missing experiment
Unlocked 17 Apr, 2021 @ 8:26am

Door Prize

Examine all the vitrified test chamber doors
Unlocked 17 Apr, 2021 @ 8:26am

Portrait of a Lady

Find a hidden portrait
Unlocked 17 Apr, 2021 @ 8:30am

You Made Your Point

Refuse to solve the first test in Chapter 8
Unlocked 17 Apr, 2021 @ 6:54am

Smash TV

Break 11 test chamber monitors
Unlocked 17 Apr, 2021 @ 7:39am

High Five

Celebrate your cooperative calibration success
Unlocked 24 Dec, 2019 @ 12:41pm

Team Building

Complete all test chambers in the Team Building co-op course
Unlocked 27 Dec, 2019 @ 4:20pm

Confidence Building

Complete all test chambers in the Mass and Velocity co-op course
Unlocked 27 Dec, 2019 @ 4:55pm

Bridge Building

Complete all test chambers in the Hard-Light Surfaces co-op course
Unlocked 31 Dec, 2019 @ 3:27pm

Obstacle Building

Complete all test chambers in the Excursion Funnels co-op course
Unlocked 7 Mar, 2020 @ 6:58am

You Saved Science

Complete all test chambers in all courses of co-op
Unlocked 7 Mar, 2020 @ 8:30am

Iron Grip

Never lose a cube in Chamber 6 of the Mass and Velocity co-op course
Unlocked 17 Apr, 2021 @ 8:59am

Gesticul-8

Perform all 8 gestures of your own volition in co-op
Unlocked 31 Dec, 2019 @ 3:55pm

Can't Touch This

Dance in front of a turret blocked by a hard light bridge in co-op
Unlocked 17 Apr, 2021 @ 9:10am

Empty Gesture

Drop your co-op partner in goo while they are gesturing by removing the bridge under them
Unlocked 28 Dec, 2019 @ 4:53pm

Party of Three

Find the hidden companion cube in co-op test chamber
Unlocked 21 Jan, 2022 @ 6:58am

Narbacular Drop

Place a portal under your co-op partner while they are gesturing
Unlocked 21 Apr, 2021 @ 7:33am

Professor Portal

After completing co-op, complete Calibration Course online with a friend who hasn’t played before
Unlocked 14 Jan, 2022 @ 6:08pm

Air Show

Perform 2 aerial gestures before touching the ground in co-op
Unlocked 27 Dec, 2019 @ 4:27pm

Portal Conservation Society

Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements
Unlocked 21 Jan, 2022 @ 7:27am

Four Ring Circus

Enter 4 different portals without touching the ground in co-op
Unlocked 15 Jan, 2022 @ 10:19am

Triple Crown

Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each
Unlocked 21 Jan, 2022 @ 7:20am

Still Alive

Complete Course 4 with neither you nor your co-op partner dying
Unlocked 21 Jan, 2022 @ 7:53am

Asking for Trouble

Taunt GLaDOS in front of a camera in each of the five co-op courses
Unlocked 14 Jan, 2022 @ 6:14pm

Rock Portal Scissors

Win 3 co-op games of rock-paper-scissors in a row
Unlocked 17 Apr, 2021 @ 9:09am

Friends List With Benefits

While playing co-op, hug 3 different people on your friends list
Unlocked 21 Jan, 2022 @ 6:50am

Talent Show

Never lose a cube in Chamber 6 of the Mobility Gels co-op course
Unlocked 18 Jan, 2022 @ 5:09pm