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51 of 51 (100%) Achievements Earned::

Personal Achievements
 

Wake Up Call

Survive the manual override
Unlocked 11 Aug, 2017 @ 3:44pm

You Monster

Reunite with GLaDOS
Unlocked 11 Aug, 2017 @ 4:00pm

Undiscouraged

Complete the first Thermal Discouragement Beam test
Unlocked 11 Aug, 2017 @ 4:03pm

Bridge Over Troubling Water

Complete the first Hard Light Bridge test
Unlocked 20 Aug, 2017 @ 6:54pm

SaBOTour

Make a break for it
Unlocked 11 Jul, 2018 @ 4:27pm

Stalemate Associate

Press the button!
Unlocked 11 Jul, 2018 @ 4:48pm

Tater Tote

Carry science forward
Unlocked 11 Sep, 2017 @ 9:16am

Vertically Unchallenged

Master the Repulsion Gel
Unlocked 11 Sep, 2017 @ 8:52am

Stranger Than Friction

Master the Propulsion Gel
Unlocked 21 Sep, 2017 @ 8:29am

White Out

Complete the first Conversion Gel test
Unlocked 21 Sep, 2017 @ 10:52am

Tunnel of Funnel

Master the Excursion Funnel
Unlocked 7 Oct, 2017 @ 11:16am

Dual Pit Experiment

Do the same test twice
Unlocked 21 Sep, 2017 @ 11:32am

The Part Where He Kills You

This is that part
Unlocked 19 Jul, 2019 @ 8:17pm

Lunacy

That just happened
Unlocked 19 Jul, 2019 @ 8:14pm

Drop Box

Place a cube on a button without touching the cube
Unlocked 26 Jun, 2022 @ 2:03pm

Overclocker

Complete Test Chamber 10 in 70 seconds
Unlocked 29 Jun, 2022 @ 4:47pm

Pit Boss

Show that pit who's boss
Unlocked 29 Jun, 2022 @ 2:12pm

Preservation of Mass

Break the rules in Test Chamber 07
Unlocked 19 Oct, 2021 @ 4:59pm

Pturretdactyl

Use an Aerial Faith Plate to launch a turret
Unlocked 29 Jun, 2022 @ 4:34pm

Final Transmission

Find the hidden signal in one of the Rat Man's dens
Unlocked 26 Jun, 2022 @ 1:45pm

Good Listener

Take GLaDOS' escape advice
Unlocked 29 Jun, 2022 @ 3:23pm

Scanned Alone

Stand in a defective turret detector
Unlocked 27 Jun, 2022 @ 8:24pm

No Hard Feelings

Save a turret from redemption
Unlocked 11 Jul, 2018 @ 4:35pm

Schrodinger's Catch

Catch a blue-painted box before it touches the ground
Unlocked 29 Jun, 2022 @ 2:54pm

Ship Overboard

Discover the missing experiment
Unlocked 29 Jun, 2022 @ 2:59pm

Door Prize

Examine all the vitrified test chamber doors
Unlocked 29 Jun, 2022 @ 2:59pm

Portrait of a Lady

Find a hidden portrait
Unlocked 29 Jun, 2022 @ 3:12pm

You Made Your Point

Refuse to solve the first test in Chapter 8
Unlocked 26 Jun, 2022 @ 2:13pm

Smash TV

Break 11 test chamber monitors
Unlocked 29 Jun, 2022 @ 4:27pm

High Five

Celebrate your cooperative calibration success
Unlocked 9 Aug, 2017 @ 4:22pm

Team Building

Complete all test chambers in the Team Building co-op course
Unlocked 10 Aug, 2017 @ 3:55pm

Confidence Building

Complete all test chambers in the Mass and Velocity co-op course
Unlocked 8 Dec, 2017 @ 5:59pm

Bridge Building

Complete all test chambers in the Hard-Light Surfaces co-op course
Unlocked 21 Aug, 2021 @ 10:53pm

Obstacle Building

Complete all test chambers in the Excursion Funnels co-op course
Unlocked 27 Aug, 2021 @ 11:03am

You Saved Science

Complete all test chambers in all courses of co-op
Unlocked 28 Jun, 2022 @ 7:04pm

Iron Grip

Never lose a cube in Chamber 6 of the Mass and Velocity co-op course
Unlocked 21 Aug, 2021 @ 9:59pm

Gesticul-8

Perform all 8 gestures of your own volition in co-op
Unlocked 21 Aug, 2021 @ 11:08pm

Can't Touch This

Dance in front of a turret blocked by a hard light bridge in co-op
Unlocked 27 Aug, 2021 @ 3:11pm

Empty Gesture

Drop your co-op partner in goo while they are gesturing by removing the bridge under them
Unlocked 29 Jun, 2022 @ 7:11pm

Party of Three

Find the hidden companion cube in co-op test chamber
Unlocked 30 Jun, 2022 @ 6:39pm

Narbacular Drop

Place a portal under your co-op partner while they are gesturing
Unlocked 29 Jun, 2022 @ 6:47pm

Professor Portal

After completing co-op, complete Calibration Course online with a friend who hasn’t played before
Unlocked 30 Jun, 2022 @ 8:11pm

Air Show

Perform 2 aerial gestures before touching the ground in co-op
Unlocked 27 Aug, 2021 @ 10:45am

Portal Conservation Society

Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements
Unlocked 30 Jun, 2022 @ 7:48pm

Four Ring Circus

Enter 4 different portals without touching the ground in co-op
Unlocked 28 Jun, 2022 @ 6:26pm

Triple Crown

Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each
Unlocked 30 Jun, 2022 @ 6:47pm

Still Alive

Complete Course 4 with neither you nor your co-op partner dying
Unlocked 1 Jul, 2022 @ 9:51am

Asking for Trouble

Taunt GLaDOS in front of a camera in each of the five co-op courses
Unlocked 27 Aug, 2021 @ 3:23pm

Rock Portal Scissors

Win 3 co-op games of rock-paper-scissors in a row
Unlocked 28 Jun, 2022 @ 2:56pm

Friends List With Benefits

While playing co-op, hug 3 different people on your friends list
Unlocked 28 Jun, 2022 @ 3:14pm

Talent Show

Never lose a cube in Chamber 6 of the Mobility Gels co-op course
Unlocked 28 Jun, 2022 @ 6:40pm