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51 of 51 (100%) Achievements Earned::

Personal Achievements
 

Wake Up Call

Survive the manual override
Unlocked 7 Oct, 2014 @ 5:47am

You Monster

Reunite with GLaDOS
Unlocked 7 Oct, 2014 @ 6:19am

Undiscouraged

Complete the first Thermal Discouragement Beam test
Unlocked 7 Oct, 2014 @ 6:23am

Bridge Over Troubling Water

Complete the first Hard Light Bridge test
Unlocked 7 Oct, 2014 @ 9:58am

SaBOTour

Make a break for it
Unlocked 13 Oct, 2014 @ 4:07am

Stalemate Associate

Press the button!
Unlocked 13 Oct, 2014 @ 7:55am

Tater Tote

Carry science forward
Unlocked 14 Oct, 2014 @ 3:55am

Vertically Unchallenged

Master the Repulsion Gel
Unlocked 14 Oct, 2014 @ 3:28am

Stranger Than Friction

Master the Propulsion Gel
Unlocked 14 Oct, 2014 @ 4:16am

White Out

Complete the first Conversion Gel test
Unlocked 15 Oct, 2014 @ 3:02am

Tunnel of Funnel

Master the Excursion Funnel
Unlocked 15 Oct, 2014 @ 7:16am

Dual Pit Experiment

Do the same test twice
Unlocked 15 Oct, 2014 @ 4:30am

The Part Where He Kills You

This is that part
Unlocked 15 Oct, 2014 @ 10:39am

Lunacy

That just happened
Unlocked 15 Oct, 2014 @ 11:08am

Drop Box

Place a cube on a button without touching the cube
Unlocked 17 Oct, 2014 @ 5:31am

Overclocker

Complete Test Chamber 10 in 70 seconds
Unlocked 28 Dec, 2022 @ 9:43am

Pit Boss

Show that pit who's boss
Unlocked 17 Oct, 2014 @ 5:10am

Preservation of Mass

Break the rules in Test Chamber 07
Unlocked 7 Oct, 2014 @ 9:42am

Pturretdactyl

Use an Aerial Faith Plate to launch a turret
Unlocked 16 Oct, 2014 @ 6:59am

Final Transmission

Find the hidden signal in one of the Rat Man's dens
Unlocked 7 Oct, 2014 @ 9:35am

Good Listener

Take GLaDOS' escape advice
Unlocked 17 Oct, 2014 @ 5:19am

Scanned Alone

Stand in a defective turret detector
Unlocked 16 Oct, 2014 @ 7:12am

No Hard Feelings

Save a turret from redemption
Unlocked 13 Oct, 2014 @ 4:25am

Schrodinger's Catch

Catch a blue-painted box before it touches the ground
Unlocked 14 Oct, 2014 @ 3:37am

Ship Overboard

Discover the missing experiment
Unlocked 16 Oct, 2014 @ 6:43am

Door Prize

Examine all the vitrified test chamber doors
Unlocked 19 Mar, 2020 @ 6:50am

Portrait of a Lady

Find a hidden portrait
Unlocked 17 Oct, 2014 @ 4:24am

You Made Your Point

Refuse to solve the first test in Chapter 8
Unlocked 17 Oct, 2014 @ 4:58am

Smash TV

Break 11 test chamber monitors
Unlocked 28 Dec, 2022 @ 10:51am

High Five

Celebrate your cooperative calibration success
Unlocked 13 Jun, 2015 @ 11:48am

Team Building

Complete all test chambers in the Team Building co-op course
Unlocked 13 Jun, 2015 @ 12:15pm

Confidence Building

Complete all test chambers in the Mass and Velocity co-op course
Unlocked 17 Feb, 2018 @ 9:31am

Bridge Building

Complete all test chambers in the Hard-Light Surfaces co-op course
Unlocked 20 Feb, 2018 @ 6:11am

Obstacle Building

Complete all test chambers in the Excursion Funnels co-op course
Unlocked 20 Feb, 2018 @ 7:57am

You Saved Science

Complete all test chambers in all courses of co-op
Unlocked 20 Feb, 2018 @ 9:13am

Iron Grip

Never lose a cube in Chamber 6 of the Mass and Velocity co-op course
Unlocked 29 Nov, 2022 @ 11:37am

Gesticul-8

Perform all 8 gestures of your own volition in co-op
Unlocked 20 Feb, 2018 @ 6:59am

Can't Touch This

Dance in front of a turret blocked by a hard light bridge in co-op
Unlocked 20 Feb, 2018 @ 7:49am

Empty Gesture

Drop your co-op partner in goo while they are gesturing by removing the bridge under them
Unlocked 26 Nov, 2022 @ 7:00am

Party of Three

Find the hidden companion cube in co-op test chamber
Unlocked 20 Feb, 2018 @ 7:55am

Narbacular Drop

Place a portal under your co-op partner while they are gesturing
Unlocked 20 Feb, 2018 @ 7:21am

Professor Portal

After completing co-op, complete Calibration Course online with a friend who hasn’t played before
Unlocked 25 Nov, 2022 @ 8:27am

Air Show

Perform 2 aerial gestures before touching the ground in co-op
Unlocked 17 Feb, 2018 @ 9:10am

Portal Conservation Society

Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements
Unlocked 29 Nov, 2022 @ 11:21am

Four Ring Circus

Enter 4 different portals without touching the ground in co-op
Unlocked 30 Nov, 2022 @ 9:04am

Triple Crown

Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each
Unlocked 20 Dec, 2022 @ 7:23am

Still Alive

Complete Course 4 with neither you nor your co-op partner dying
Unlocked 20 Dec, 2022 @ 8:29am

Asking for Trouble

Taunt GLaDOS in front of a camera in each of the five co-op courses
Unlocked 26 Nov, 2022 @ 7:01am

Rock Portal Scissors

Win 3 co-op games of rock-paper-scissors in a row
Unlocked 13 Jun, 2015 @ 12:16pm

Friends List With Benefits

While playing co-op, hug 3 different people on your friends list
Unlocked 17 Aug, 2020 @ 12:05pm

Talent Show

Never lose a cube in Chamber 6 of the Mobility Gels co-op course
Unlocked 30 Nov, 2022 @ 9:23am