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51 of 51 (100%) Achievements Earned::

Personal Achievements
 

Wake Up Call

Survive the manual override
Unlocked Apr 16, 2015 @ 11:43am

You Monster

Reunite with GLaDOS
Unlocked May 13, 2015 @ 11:17am

Undiscouraged

Complete the first Thermal Discouragement Beam test
Unlocked May 13, 2015 @ 11:17am

Bridge Over Troubling Water

Complete the first Hard Light Bridge test
Unlocked Apr 19, 2015 @ 3:28am

SaBOTour

Make a break for it
Unlocked Apr 19, 2015 @ 3:56am

Stalemate Associate

Press the button!
Unlocked May 3, 2015 @ 6:38am

Tater Tote

Carry science forward
Unlocked May 6, 2015 @ 9:51am

Vertically Unchallenged

Master the Repulsion Gel
Unlocked May 6, 2015 @ 9:39am

Stranger Than Friction

Master the Propulsion Gel
Unlocked May 9, 2015 @ 6:41am

White Out

Complete the first Conversion Gel test
Unlocked May 9, 2015 @ 6:50am

Tunnel of Funnel

Master the Excursion Funnel
Unlocked May 13, 2015 @ 11:17am

Dual Pit Experiment

Do the same test twice
Unlocked May 9, 2015 @ 7:06am

The Part Where He Kills You

This is that part
Unlocked May 13, 2015 @ 11:17am

Lunacy

That just happened
Unlocked May 13, 2015 @ 11:17am

Drop Box

Place a cube on a button without touching the cube
Unlocked Apr 16, 2015 @ 10:31am

Overclocker

Complete Test Chamber 10 in 70 seconds
Unlocked Dec 17, 2021 @ 12:54pm

Pit Boss

Show that pit who's boss
Unlocked Feb 11, 2020 @ 1:19pm

Preservation of Mass

Break the rules in Test Chamber 07
Unlocked Jun 11, 2017 @ 10:34am

Pturretdactyl

Use an Aerial Faith Plate to launch a turret
Unlocked Apr 19, 2015 @ 2:53am

Final Transmission

Find the hidden signal in one of the Rat Man's dens
Unlocked Jun 11, 2017 @ 10:26am

Good Listener

Take GLaDOS' escape advice
Unlocked May 13, 2015 @ 11:17am

Scanned Alone

Stand in a defective turret detector
Unlocked May 13, 2015 @ 11:17am

No Hard Feelings

Save a turret from redemption
Unlocked Apr 29, 2015 @ 12:13pm

Schrodinger's Catch

Catch a blue-painted box before it touches the ground
Unlocked Dec 17, 2021 @ 1:00pm

Ship Overboard

Discover the missing experiment
Unlocked May 6, 2015 @ 9:49am

Door Prize

Examine all the vitrified test chamber doors
Unlocked May 13, 2015 @ 11:17am

Portrait of a Lady

Find a hidden portrait
Unlocked Feb 10, 2020 @ 12:26pm

You Made Your Point

Refuse to solve the first test in Chapter 8
Unlocked Feb 11, 2020 @ 12:28pm

Smash TV

Break 11 test chamber monitors
Unlocked Feb 11, 2020 @ 1:15pm

High Five

Celebrate your cooperative calibration success
Unlocked May 13, 2015 @ 11:17am

Team Building

Complete all test chambers in the Team Building co-op course
Unlocked May 13, 2015 @ 11:17am

Confidence Building

Complete all test chambers in the Mass and Velocity co-op course
Unlocked May 13, 2015 @ 11:17am

Bridge Building

Complete all test chambers in the Hard-Light Surfaces co-op course
Unlocked Nov 18, 2017 @ 8:43am

Obstacle Building

Complete all test chambers in the Excursion Funnels co-op course
Unlocked Mar 29, 2019 @ 3:10pm

You Saved Science

Complete all test chambers in all courses of co-op
Unlocked Mar 30, 2019 @ 10:34am

Iron Grip

Never lose a cube in Chamber 6 of the Mass and Velocity co-op course
Unlocked Dec 17, 2021 @ 1:19pm

Gesticul-8

Perform all 8 gestures of your own volition in co-op
Unlocked Nov 22, 2017 @ 11:17am

Can't Touch This

Dance in front of a turret blocked by a hard light bridge in co-op
Unlocked Mar 29, 2019 @ 2:56pm

Empty Gesture

Drop your co-op partner in goo while they are gesturing by removing the bridge under them
Unlocked Dec 17, 2021 @ 12:52pm

Party of Three

Find the hidden companion cube in co-op test chamber
Unlocked Dec 17, 2021 @ 1:14pm

Narbacular Drop

Place a portal under your co-op partner while they are gesturing
Unlocked Feb 20, 2020 @ 10:10am

Professor Portal

After completing co-op, complete Calibration Course online with a friend who hasn’t played before
Unlocked Dec 17, 2021 @ 1:07pm

Air Show

Perform 2 aerial gestures before touching the ground in co-op
Unlocked Nov 18, 2017 @ 9:00am

Portal Conservation Society

Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements
Unlocked Dec 17, 2021 @ 1:24pm

Four Ring Circus

Enter 4 different portals without touching the ground in co-op
Unlocked Dec 17, 2021 @ 1:27pm

Triple Crown

Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each
Unlocked Dec 17, 2021 @ 1:33pm

Still Alive

Complete Course 4 with neither you nor your co-op partner dying
Unlocked Dec 17, 2021 @ 2:02pm

Asking for Trouble

Taunt GLaDOS in front of a camera in each of the five co-op courses
Unlocked Mar 29, 2019 @ 3:13pm

Rock Portal Scissors

Win 3 co-op games of rock-paper-scissors in a row
Unlocked Nov 18, 2017 @ 9:04am

Friends List With Benefits

While playing co-op, hug 3 different people on your friends list
Unlocked Dec 17, 2021 @ 1:10pm

Talent Show

Never lose a cube in Chamber 6 of the Mobility Gels co-op course
Unlocked Dec 17, 2021 @ 12:49pm