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51 of 51 (100%) Achievements Earned::

Personal Achievements
 

Wake Up Call

Survive the manual override
Unlocked 25 Dec, 2013 @ 1:28pm

You Monster

Reunite with GLaDOS
Unlocked 25 Dec, 2013 @ 1:50pm

Undiscouraged

Complete the first Thermal Discouragement Beam test
Unlocked 25 Dec, 2013 @ 8:19pm

Bridge Over Troubling Water

Complete the first Hard Light Bridge test
Unlocked 25 Dec, 2013 @ 8:57pm

SaBOTour

Make a break for it
Unlocked 26 Dec, 2013 @ 1:21pm

Stalemate Associate

Press the button!
Unlocked 26 Dec, 2013 @ 2:08pm

Tater Tote

Carry science forward
Unlocked 26 Dec, 2013 @ 5:18pm

Vertically Unchallenged

Master the Repulsion Gel
Unlocked 26 Dec, 2013 @ 3:19pm

Stranger Than Friction

Master the Propulsion Gel
Unlocked 27 Dec, 2013 @ 4:24pm

White Out

Complete the first Conversion Gel test
Unlocked 27 Dec, 2013 @ 5:01pm

Tunnel of Funnel

Master the Excursion Funnel
Unlocked 29 Dec, 2013 @ 6:46am

Dual Pit Experiment

Do the same test twice
Unlocked 28 Dec, 2013 @ 8:10pm

The Part Where He Kills You

This is that part
Unlocked 29 Dec, 2013 @ 7:08am

Lunacy

That just happened
Unlocked 29 Dec, 2013 @ 7:41am

Drop Box

Place a cube on a button without touching the cube
Unlocked 25 Dec, 2013 @ 8:32pm

Overclocker

Complete Test Chamber 10 in 70 seconds
Unlocked 23 Mar, 2018 @ 6:57am

Pit Boss

Show that pit who's boss
Unlocked 28 Jan, 2014 @ 11:01am

Preservation of Mass

Break the rules in Test Chamber 07
Unlocked 5 Mar, 2014 @ 10:55am

Pturretdactyl

Use an Aerial Faith Plate to launch a turret
Unlocked 21 Mar, 2018 @ 8:00pm

Final Transmission

Find the hidden signal in one of the Rat Man's dens
Unlocked 21 Mar, 2018 @ 7:57pm

Good Listener

Take GLaDOS' escape advice
Unlocked 22 Mar, 2018 @ 3:27pm

Scanned Alone

Stand in a defective turret detector
Unlocked 26 Dec, 2013 @ 1:34pm

No Hard Feelings

Save a turret from redemption
Unlocked 3 Apr, 2017 @ 8:43pm

Schrodinger's Catch

Catch a blue-painted box before it touches the ground
Unlocked 23 Mar, 2018 @ 6:52am

Ship Overboard

Discover the missing experiment
Unlocked 21 Mar, 2018 @ 8:30pm

Door Prize

Examine all the vitrified test chamber doors
Unlocked 22 Mar, 2018 @ 3:04pm

Portrait of a Lady

Find a hidden portrait
Unlocked 31 Dec, 2013 @ 2:58pm

You Made Your Point

Refuse to solve the first test in Chapter 8
Unlocked 21 Mar, 2018 @ 7:52pm

Smash TV

Break 11 test chamber monitors
Unlocked 23 Mar, 2018 @ 10:21am

High Five

Celebrate your cooperative calibration success
Unlocked 28 Dec, 2013 @ 9:41am

Team Building

Complete all test chambers in the Team Building co-op course
Unlocked 28 Dec, 2013 @ 10:09am

Confidence Building

Complete all test chambers in the Mass and Velocity co-op course
Unlocked 28 Dec, 2013 @ 11:10am

Bridge Building

Complete all test chambers in the Hard-Light Surfaces co-op course
Unlocked 27 Apr, 2016 @ 1:23pm

Obstacle Building

Complete all test chambers in the Excursion Funnels co-op course
Unlocked 4 Jun, 2016 @ 9:29am

You Saved Science

Complete all test chambers in all courses of co-op
Unlocked 4 Jun, 2016 @ 9:29am

Iron Grip

Never lose a cube in Chamber 6 of the Mass and Velocity co-op course
Unlocked 22 Mar, 2018 @ 8:35pm

Gesticul-8

Perform all 8 gestures of your own volition in co-op
Unlocked 27 Apr, 2016 @ 1:34pm

Can't Touch This

Dance in front of a turret blocked by a hard light bridge in co-op
Unlocked 27 Apr, 2016 @ 1:12pm

Empty Gesture

Drop your co-op partner in goo while they are gesturing by removing the bridge under them
Unlocked 4 Jun, 2016 @ 9:44am

Party of Three

Find the hidden companion cube in co-op test chamber
Unlocked 27 Apr, 2016 @ 1:54pm

Narbacular Drop

Place a portal under your co-op partner while they are gesturing
Unlocked 4 Jun, 2016 @ 9:38am

Professor Portal

After completing co-op, complete Calibration Course online with a friend who hasn’t played before
Unlocked 17 Jun, 2016 @ 2:50pm

Air Show

Perform 2 aerial gestures before touching the ground in co-op
Unlocked 21 Mar, 2018 @ 7:17pm

Portal Conservation Society

Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements
Unlocked 22 Mar, 2018 @ 8:15pm

Four Ring Circus

Enter 4 different portals without touching the ground in co-op
Unlocked 22 Mar, 2018 @ 9:37pm

Triple Crown

Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each
Unlocked 22 Mar, 2018 @ 9:02pm

Still Alive

Complete Course 4 with neither you nor your co-op partner dying
Unlocked 25 Mar, 2018 @ 8:29pm

Asking for Trouble

Taunt GLaDOS in front of a camera in each of the five co-op courses
Unlocked 16 May, 2016 @ 10:27am

Rock Portal Scissors

Win 3 co-op games of rock-paper-scissors in a row
Unlocked 1 Jun, 2016 @ 3:33pm

Friends List With Benefits

While playing co-op, hug 3 different people on your friends list
Unlocked 24 Mar, 2018 @ 11:23pm

Talent Show

Never lose a cube in Chamber 6 of the Mobility Gels co-op course
Unlocked 22 Mar, 2018 @ 8:51pm