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51 of 51 (100%) Achievements Earned::

Personal Achievements
 

Wake Up Call

Survive the manual override
Unlocked 28 Sep, 2016 @ 5:26pm

You Monster

Reunite with GLaDOS
Unlocked 28 Sep, 2016 @ 5:48pm

Undiscouraged

Complete the first Thermal Discouragement Beam test
Unlocked 28 Sep, 2016 @ 5:51pm

Bridge Over Troubling Water

Complete the first Hard Light Bridge test
Unlocked 28 Sep, 2016 @ 6:32pm

SaBOTour

Make a break for it
Unlocked 3 Oct, 2016 @ 6:36pm

Stalemate Associate

Press the button!
Unlocked 3 Oct, 2016 @ 6:56pm

Tater Tote

Carry science forward
Unlocked 4 Oct, 2016 @ 3:19pm

Vertically Unchallenged

Master the Repulsion Gel
Unlocked 4 Oct, 2016 @ 7:48am

Stranger Than Friction

Master the Propulsion Gel
Unlocked 5 Oct, 2016 @ 7:20am

White Out

Complete the first Conversion Gel test
Unlocked 5 Oct, 2016 @ 4:42pm

Tunnel of Funnel

Master the Excursion Funnel
Unlocked 5 Nov, 2016 @ 3:13pm

Dual Pit Experiment

Do the same test twice
Unlocked 6 Oct, 2016 @ 7:29am

The Part Where He Kills You

This is that part
Unlocked 5 Nov, 2016 @ 3:54pm

Lunacy

That just happened
Unlocked 12 Oct, 2016 @ 6:58am

Drop Box

Place a cube on a button without touching the cube
Unlocked 4 Nov, 2016 @ 9:58pm

Overclocker

Complete Test Chamber 10 in 70 seconds
Unlocked 27 Jul, 2023 @ 9:59pm

Pit Boss

Show that pit who's boss
Unlocked 5 Nov, 2016 @ 3:54pm

Preservation of Mass

Break the rules in Test Chamber 07
Unlocked 4 Nov, 2016 @ 10:03pm

Pturretdactyl

Use an Aerial Faith Plate to launch a turret
Unlocked 4 Jan, 2017 @ 5:35pm

Final Transmission

Find the hidden signal in one of the Rat Man's dens
Unlocked 4 Nov, 2016 @ 9:58pm

Good Listener

Take GLaDOS' escape advice
Unlocked 5 Nov, 2016 @ 11:31am

Scanned Alone

Stand in a defective turret detector
Unlocked 5 Nov, 2016 @ 11:40am

No Hard Feelings

Save a turret from redemption
Unlocked 3 Oct, 2016 @ 6:45pm

Schrodinger's Catch

Catch a blue-painted box before it touches the ground
Unlocked 27 Jul, 2023 @ 10:22pm

Ship Overboard

Discover the missing experiment
Unlocked 4 Oct, 2016 @ 3:14pm

Door Prize

Examine all the vitrified test chamber doors
Unlocked 5 Nov, 2016 @ 12:02pm

Portrait of a Lady

Find a hidden portrait
Unlocked 5 Nov, 2016 @ 12:27pm

You Made Your Point

Refuse to solve the first test in Chapter 8
Unlocked 7 Nov, 2016 @ 3:56pm

Smash TV

Break 11 test chamber monitors
Unlocked 5 Nov, 2016 @ 3:47pm

High Five

Celebrate your cooperative calibration success
Unlocked 1 Oct, 2016 @ 3:49pm

Team Building

Complete all test chambers in the Team Building co-op course
Unlocked 1 Oct, 2016 @ 4:09pm

Confidence Building

Complete all test chambers in the Mass and Velocity co-op course
Unlocked 1 Oct, 2016 @ 10:08pm

Bridge Building

Complete all test chambers in the Hard-Light Surfaces co-op course
Unlocked 5 Nov, 2016 @ 10:39am

Obstacle Building

Complete all test chambers in the Excursion Funnels co-op course
Unlocked 5 Nov, 2016 @ 9:58am

You Saved Science

Complete all test chambers in all courses of co-op
Unlocked 8 Nov, 2016 @ 3:12pm

Iron Grip

Never lose a cube in Chamber 6 of the Mass and Velocity co-op course
Unlocked 14 Jul, 2018 @ 12:26pm

Gesticul-8

Perform all 8 gestures of your own volition in co-op
Unlocked 5 Nov, 2016 @ 10:38am

Can't Touch This

Dance in front of a turret blocked by a hard light bridge in co-op
Unlocked 6 Nov, 2016 @ 8:29am

Empty Gesture

Drop your co-op partner in goo while they are gesturing by removing the bridge under them
Unlocked 28 Jul, 2023 @ 10:33am

Party of Three

Find the hidden companion cube in co-op test chamber
Unlocked 11 Nov, 2016 @ 3:29pm

Narbacular Drop

Place a portal under your co-op partner while they are gesturing
Unlocked 14 Jul, 2018 @ 12:38am

Professor Portal

After completing co-op, complete Calibration Course online with a friend who hasn’t played before
Unlocked 14 Jul, 2018 @ 12:18am

Air Show

Perform 2 aerial gestures before touching the ground in co-op
Unlocked 4 Oct, 2016 @ 3:48pm

Portal Conservation Society

Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements
Unlocked 28 Jul, 2023 @ 10:51am

Four Ring Circus

Enter 4 different portals without touching the ground in co-op
Unlocked 28 Jul, 2023 @ 10:36am

Triple Crown

Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each
Unlocked 14 Jul, 2018 @ 11:50am

Still Alive

Complete Course 4 with neither you nor your co-op partner dying
Unlocked 28 Jul, 2023 @ 10:32am

Asking for Trouble

Taunt GLaDOS in front of a camera in each of the five co-op courses
Unlocked 26 Apr, 2020 @ 2:13pm

Rock Portal Scissors

Win 3 co-op games of rock-paper-scissors in a row
Unlocked 15 Jul, 2018 @ 2:57pm

Friends List With Benefits

While playing co-op, hug 3 different people on your friends list
Unlocked 14 Jul, 2018 @ 12:21am

Talent Show

Never lose a cube in Chamber 6 of the Mobility Gels co-op course
Unlocked 28 Jul, 2023 @ 9:24am