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51 of 51 (100%) Achievements Earned::

Personal Achievements
 

Wake Up Call

Survive the manual override
Unlocked Nov 4, 2014 @ 9:44am

You Monster

Reunite with GLaDOS
Unlocked Nov 5, 2014 @ 5:51am

Undiscouraged

Complete the first Thermal Discouragement Beam test
Unlocked Nov 5, 2014 @ 5:56am

Bridge Over Troubling Water

Complete the first Hard Light Bridge test
Unlocked Nov 5, 2014 @ 7:33am

SaBOTour

Make a break for it
Unlocked Nov 5, 2014 @ 8:10am

Stalemate Associate

Press the button!
Unlocked Nov 5, 2014 @ 10:34am

Tater Tote

Carry science forward
Unlocked Nov 6, 2014 @ 1:21am

Vertically Unchallenged

Master the Repulsion Gel
Unlocked Nov 5, 2014 @ 11:02am

Stranger Than Friction

Master the Propulsion Gel
Unlocked Nov 6, 2014 @ 1:31am

White Out

Complete the first Conversion Gel test
Unlocked Nov 6, 2014 @ 1:47am

Tunnel of Funnel

Master the Excursion Funnel
Unlocked Nov 6, 2014 @ 2:52am

Dual Pit Experiment

Do the same test twice
Unlocked Nov 6, 2014 @ 2:11am

The Part Where He Kills You

This is that part
Unlocked Nov 6, 2014 @ 3:01am

Lunacy

That just happened
Unlocked Nov 6, 2014 @ 3:25am

Drop Box

Place a cube on a button without touching the cube
Unlocked Nov 5, 2014 @ 6:08am

Overclocker

Complete Test Chamber 10 in 70 seconds
Unlocked Nov 5, 2014 @ 7:30am

Pit Boss

Show that pit who's boss
Unlocked Nov 6, 2014 @ 3:01am

Preservation of Mass

Break the rules in Test Chamber 07
Unlocked Nov 5, 2014 @ 6:13am

Pturretdactyl

Use an Aerial Faith Plate to launch a turret
Unlocked Nov 6, 2014 @ 6:41am

Final Transmission

Find the hidden signal in one of the Rat Man's dens
Unlocked Nov 6, 2014 @ 6:43am

Good Listener

Take GLaDOS' escape advice
Unlocked Nov 5, 2014 @ 8:10am

Scanned Alone

Stand in a defective turret detector
Unlocked Nov 27, 2022 @ 5:23am

No Hard Feelings

Save a turret from redemption
Unlocked Nov 5, 2014 @ 8:18am

Schrodinger's Catch

Catch a blue-painted box before it touches the ground
Unlocked Nov 6, 2014 @ 1:11am

Ship Overboard

Discover the missing experiment
Unlocked Nov 6, 2014 @ 1:17am

Door Prize

Examine all the vitrified test chamber doors
Unlocked Nov 27, 2022 @ 5:16am

Portrait of a Lady

Find a hidden portrait
Unlocked Nov 6, 2014 @ 1:26am

You Made Your Point

Refuse to solve the first test in Chapter 8
Unlocked Nov 6, 2014 @ 2:10am

Smash TV

Break 11 test chamber monitors
Unlocked Nov 27, 2022 @ 6:26am

High Five

Celebrate your cooperative calibration success
Unlocked Nov 4, 2014 @ 6:21am

Team Building

Complete all test chambers in the Team Building co-op course
Unlocked Nov 4, 2014 @ 6:36am

Confidence Building

Complete all test chambers in the Mass and Velocity co-op course
Unlocked Nov 4, 2014 @ 6:53am

Bridge Building

Complete all test chambers in the Hard-Light Surfaces co-op course
Unlocked Nov 4, 2014 @ 7:56am

Obstacle Building

Complete all test chambers in the Excursion Funnels co-op course
Unlocked Nov 4, 2014 @ 9:02am

You Saved Science

Complete all test chambers in all courses of co-op
Unlocked Nov 5, 2014 @ 2:04am

Iron Grip

Never lose a cube in Chamber 6 of the Mass and Velocity co-op course
Unlocked Nov 4, 2014 @ 6:48am

Gesticul-8

Perform all 8 gestures of your own volition in co-op
Unlocked Nov 4, 2014 @ 8:26am

Can't Touch This

Dance in front of a turret blocked by a hard light bridge in co-op
Unlocked Nov 26, 2022 @ 7:43am

Empty Gesture

Drop your co-op partner in goo while they are gesturing by removing the bridge under them
Unlocked Nov 26, 2022 @ 7:46am

Party of Three

Find the hidden companion cube in co-op test chamber
Unlocked Nov 26, 2022 @ 7:55am

Narbacular Drop

Place a portal under your co-op partner while they are gesturing
Unlocked Nov 9, 2014 @ 10:47am

Professor Portal

After completing co-op, complete Calibration Course online with a friend who hasn’t played before
Unlocked Apr 29, 2015 @ 11:08am

Air Show

Perform 2 aerial gestures before touching the ground in co-op
Unlocked Nov 4, 2014 @ 6:40am

Portal Conservation Society

Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements
Unlocked Nov 26, 2022 @ 8:33am

Four Ring Circus

Enter 4 different portals without touching the ground in co-op
Unlocked Nov 26, 2022 @ 4:50pm

Triple Crown

Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each
Unlocked Nov 26, 2022 @ 2:55pm

Still Alive

Complete Course 4 with neither you nor your co-op partner dying
Unlocked Nov 26, 2022 @ 4:47pm

Asking for Trouble

Taunt GLaDOS in front of a camera in each of the five co-op courses
Unlocked Apr 29, 2015 @ 11:26am

Rock Portal Scissors

Win 3 co-op games of rock-paper-scissors in a row
Unlocked Nov 5, 2014 @ 8:28am

Friends List With Benefits

While playing co-op, hug 3 different people on your friends list
Unlocked Nov 26, 2022 @ 4:50pm

Talent Show

Never lose a cube in Chamber 6 of the Mobility Gels co-op course
Unlocked Nov 26, 2022 @ 4:30pm