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41 of 51 (80%) Achievements Earned::

Personal Achievements
 

Wake Up Call

Survive the manual override
Unlocked Nov 24, 2012 @ 1:00am

You Monster

Reunite with GLaDOS
Unlocked Nov 24, 2012 @ 6:37pm

Undiscouraged

Complete the first Thermal Discouragement Beam test
Unlocked Nov 24, 2012 @ 6:41pm

Bridge Over Troubling Water

Complete the first Hard Light Bridge test
Unlocked Nov 24, 2012 @ 7:22pm

SaBOTour

Make a break for it
Unlocked Nov 24, 2012 @ 8:00pm

Stalemate Associate

Press the button!
Unlocked Nov 24, 2012 @ 8:20pm

Tater Tote

Carry science forward
Unlocked Nov 25, 2012 @ 9:28pm

Vertically Unchallenged

Master the Repulsion Gel
Unlocked Nov 25, 2012 @ 2:22am

Stranger Than Friction

Master the Propulsion Gel
Unlocked Dec 4, 2012 @ 8:41pm

White Out

Complete the first Conversion Gel test
Unlocked Dec 4, 2012 @ 8:59pm

Tunnel of Funnel

Master the Excursion Funnel
Unlocked Dec 5, 2012 @ 7:13am

Dual Pit Experiment

Do the same test twice
Unlocked Dec 4, 2012 @ 9:32pm

The Part Where He Kills You

This is that part
Unlocked Dec 5, 2012 @ 7:24am

Lunacy

That just happened
Unlocked Dec 6, 2012 @ 3:19am

Drop Box

Place a cube on a button without touching the cube
Unlocked Apr 11, 2013 @ 9:21pm

Pit Boss

Show that pit who's boss
Unlocked Dec 5, 2012 @ 7:25am

Preservation of Mass

Break the rules in Test Chamber 07
Unlocked Nov 24, 2012 @ 7:09pm

Pturretdactyl

Use an Aerial Faith Plate to launch a turret
Unlocked Nov 24, 2012 @ 6:56pm

Final Transmission

Find the hidden signal in one of the Rat Man's dens
Unlocked Nov 24, 2012 @ 6:57pm

Good Listener

Take GLaDOS' escape advice
Unlocked Nov 24, 2012 @ 8:01pm

No Hard Feelings

Save a turret from redemption
Unlocked Nov 24, 2012 @ 8:08pm

Ship Overboard

Discover the missing experiment
Unlocked Nov 25, 2012 @ 9:30pm

Door Prize

Examine all the vitrified test chamber doors
Unlocked Nov 25, 2012 @ 9:29pm

Portrait of a Lady

Find a hidden portrait
Unlocked Dec 4, 2012 @ 8:01pm

You Made Your Point

Refuse to solve the first test in Chapter 8
Unlocked Dec 4, 2012 @ 9:31pm

High Five

Celebrate your cooperative calibration success
Unlocked Nov 24, 2012 @ 12:50am

Team Building

Complete all test chambers in the Team Building co-op course
Unlocked Nov 24, 2012 @ 1:31am

Confidence Building

Complete all test chambers in the Mass and Velocity co-op course
Unlocked Nov 24, 2012 @ 8:53pm

Bridge Building

Complete all test chambers in the Hard-Light Surfaces co-op course
Unlocked Dec 27, 2015 @ 6:26am

Obstacle Building

Complete all test chambers in the Excursion Funnels co-op course
Unlocked Apr 24, 2020 @ 9:40am

You Saved Science

Complete all test chambers in all courses of co-op
Unlocked Apr 24, 2020 @ 9:40am

Gesticul-8

Perform all 8 gestures of your own volition in co-op
Unlocked Apr 24, 2020 @ 9:16am

Can't Touch This

Dance in front of a turret blocked by a hard light bridge in co-op
Unlocked Nov 24, 2012 @ 9:40pm

Empty Gesture

Drop your co-op partner in goo while they are gesturing by removing the bridge under them
Unlocked Dec 6, 2012 @ 4:29am

Party of Three

Find the hidden companion cube in co-op test chamber
Unlocked Apr 24, 2020 @ 11:51am

Narbacular Drop

Place a portal under your co-op partner while they are gesturing
Unlocked Apr 24, 2020 @ 11:39am

Professor Portal

After completing co-op, complete Calibration Course online with a friend who hasn’t played before
Unlocked Aug 7, 2021 @ 2:49am

Air Show

Perform 2 aerial gestures before touching the ground in co-op
Unlocked Dec 6, 2012 @ 4:37am

Asking for Trouble

Taunt GLaDOS in front of a camera in each of the five co-op courses
Unlocked Apr 24, 2020 @ 9:09am

Rock Portal Scissors

Win 3 co-op games of rock-paper-scissors in a row
Unlocked Nov 24, 2012 @ 1:24am

Friends List With Benefits

While playing co-op, hug 3 different people on your friends list
Unlocked Aug 7, 2021 @ 4:47am



Overclocker

Complete Test Chamber 10 in 70 seconds

Scanned Alone

Stand in a defective turret detector

Schrodinger's Catch

Catch a blue-painted box before it touches the ground

Smash TV

Break 11 test chamber monitors

Iron Grip

Never lose a cube in Chamber 6 of the Mass and Velocity co-op course

Portal Conservation Society

Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements

Four Ring Circus

Enter 4 different portals without touching the ground in co-op

Triple Crown

Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each

Still Alive

Complete Course 4 with neither you nor your co-op partner dying

Talent Show

Never lose a cube in Chamber 6 of the Mobility Gels co-op course