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51 of 51 (100%) Achievements Earned::

Personal Achievements
 

Wake Up Call

Survive the manual override
Unlocked 23 Nov, 2012 @ 3:28am

You Monster

Reunite with GLaDOS
Unlocked 23 Nov, 2012 @ 3:47am

Undiscouraged

Complete the first Thermal Discouragement Beam test
Unlocked 23 Nov, 2012 @ 3:51am

Bridge Over Troubling Water

Complete the first Hard Light Bridge test
Unlocked 23 Nov, 2012 @ 4:24am

SaBOTour

Make a break for it
Unlocked 13 May, 2013 @ 3:25pm

Stalemate Associate

Press the button!
Unlocked 13 May, 2013 @ 3:45pm

Tater Tote

Carry science forward
Unlocked 16 May, 2013 @ 3:15pm

Vertically Unchallenged

Master the Repulsion Gel
Unlocked 16 May, 2013 @ 2:53pm

Stranger Than Friction

Master the Propulsion Gel
Unlocked 16 May, 2013 @ 3:28pm

White Out

Complete the first Conversion Gel test
Unlocked 16 May, 2013 @ 3:36pm

Tunnel of Funnel

Master the Excursion Funnel
Unlocked 17 May, 2013 @ 1:57pm

Dual Pit Experiment

Do the same test twice
Unlocked 16 May, 2013 @ 5:32pm

The Part Where He Kills You

This is that part
Unlocked 17 May, 2013 @ 2:12pm

Lunacy

That just happened
Unlocked 17 May, 2013 @ 2:32pm

Drop Box

Place a cube on a button without touching the cube
Unlocked 23 Nov, 2012 @ 3:33am

Overclocker

Complete Test Chamber 10 in 70 seconds
Unlocked 6 Jun, 2021 @ 11:21pm

Pit Boss

Show that pit who's boss
Unlocked 22 May, 2021 @ 11:45am

Preservation of Mass

Break the rules in Test Chamber 07
Unlocked 23 Nov, 2012 @ 4:06am

Pturretdactyl

Use an Aerial Faith Plate to launch a turret
Unlocked 24 Aug, 2019 @ 10:59pm

Final Transmission

Find the hidden signal in one of the Rat Man's dens
Unlocked 23 Aug, 2013 @ 2:15pm

Good Listener

Take GLaDOS' escape advice
Unlocked 7 Jun, 2013 @ 5:32pm

Scanned Alone

Stand in a defective turret detector
Unlocked 13 May, 2013 @ 3:35pm

No Hard Feelings

Save a turret from redemption
Unlocked 13 May, 2013 @ 3:32pm

Schrodinger's Catch

Catch a blue-painted box before it touches the ground
Unlocked 22 May, 2021 @ 10:42am

Ship Overboard

Discover the missing experiment
Unlocked 22 May, 2021 @ 10:54am

Door Prize

Examine all the vitrified test chamber doors
Unlocked 22 May, 2021 @ 10:54am

Portrait of a Lady

Find a hidden portrait
Unlocked 9 Aug, 2018 @ 1:58pm

You Made Your Point

Refuse to solve the first test in Chapter 8
Unlocked 21 Sep, 2019 @ 10:38am

Smash TV

Break 11 test chamber monitors
Unlocked 22 May, 2021 @ 11:42am

High Five

Celebrate your cooperative calibration success
Unlocked 12 May, 2013 @ 7:45am

Team Building

Complete all test chambers in the Team Building co-op course
Unlocked 11 Jun, 2013 @ 6:19pm

Confidence Building

Complete all test chambers in the Mass and Velocity co-op course
Unlocked 12 Jun, 2013 @ 1:54pm

Bridge Building

Complete all test chambers in the Hard-Light Surfaces co-op course
Unlocked 11 Oct, 2013 @ 4:31pm

Obstacle Building

Complete all test chambers in the Excursion Funnels co-op course
Unlocked 11 Oct, 2013 @ 5:18pm

You Saved Science

Complete all test chambers in all courses of co-op
Unlocked 6 Aug, 2016 @ 1:46pm

Iron Grip

Never lose a cube in Chamber 6 of the Mass and Velocity co-op course
Unlocked 12 Jun, 2021 @ 10:10pm

Gesticul-8

Perform all 8 gestures of your own volition in co-op
Unlocked 11 Oct, 2013 @ 4:39pm

Can't Touch This

Dance in front of a turret blocked by a hard light bridge in co-op
Unlocked 5 Jun, 2021 @ 8:13pm

Empty Gesture

Drop your co-op partner in goo while they are gesturing by removing the bridge under them
Unlocked 5 Jun, 2021 @ 7:33pm

Party of Three

Find the hidden companion cube in co-op test chamber
Unlocked 11 Oct, 2013 @ 5:15pm

Narbacular Drop

Place a portal under your co-op partner while they are gesturing
Unlocked 12 Jun, 2021 @ 9:49pm

Professor Portal

After completing co-op, complete Calibration Course online with a friend who hasn’t played before
Unlocked 13 Jun, 2021 @ 9:05am

Air Show

Perform 2 aerial gestures before touching the ground in co-op
Unlocked 12 Jun, 2013 @ 7:54am

Portal Conservation Society

Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements
Unlocked 12 Jun, 2021 @ 10:38pm

Four Ring Circus

Enter 4 different portals without touching the ground in co-op
Unlocked 12 Jun, 2021 @ 9:48pm

Triple Crown

Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each
Unlocked 12 Jun, 2021 @ 9:54pm

Still Alive

Complete Course 4 with neither you nor your co-op partner dying
Unlocked 12 Jun, 2021 @ 11:37pm

Asking for Trouble

Taunt GLaDOS in front of a camera in each of the five co-op courses
Unlocked 5 Jun, 2021 @ 7:48pm

Rock Portal Scissors

Win 3 co-op games of rock-paper-scissors in a row
Unlocked 5 Jun, 2021 @ 6:50pm

Friends List With Benefits

While playing co-op, hug 3 different people on your friends list
Unlocked 12 Jun, 2021 @ 10:41pm

Talent Show

Never lose a cube in Chamber 6 of the Mobility Gels co-op course
Unlocked 12 Jun, 2021 @ 10:22pm