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51 of 51 (100%) Achievements Earned::

Personal Achievements
 

Wake Up Call

Survive the manual override
Unlocked 21 Jun, 2014 @ 5:05pm

You Monster

Reunite with GLaDOS
Unlocked 21 Jun, 2014 @ 5:24pm

Undiscouraged

Complete the first Thermal Discouragement Beam test
Unlocked 21 Jun, 2014 @ 5:29pm

Bridge Over Troubling Water

Complete the first Hard Light Bridge test
Unlocked 22 Jun, 2014 @ 9:54am

SaBOTour

Make a break for it
Unlocked 22 Jun, 2014 @ 12:53pm

Stalemate Associate

Press the button!
Unlocked 22 Jun, 2014 @ 1:14pm

Tater Tote

Carry science forward
Unlocked 30 Jun, 2014 @ 9:29am

Vertically Unchallenged

Master the Repulsion Gel
Unlocked 22 Jun, 2014 @ 1:36pm

Stranger Than Friction

Master the Propulsion Gel
Unlocked 21 Jul, 2014 @ 9:54am

White Out

Complete the first Conversion Gel test
Unlocked 21 Jul, 2014 @ 10:02am

Tunnel of Funnel

Master the Excursion Funnel
Unlocked 22 Jul, 2014 @ 3:29pm

Dual Pit Experiment

Do the same test twice
Unlocked 21 Jul, 2014 @ 10:33am

The Part Where He Kills You

This is that part
Unlocked 22 Jul, 2014 @ 3:39pm

Lunacy

That just happened
Unlocked 22 Jul, 2014 @ 4:04pm

Drop Box

Place a cube on a button without touching the cube
Unlocked 21 Jun, 2014 @ 10:04am

Overclocker

Complete Test Chamber 10 in 70 seconds
Unlocked 21 Jul, 2021 @ 10:22pm

Pit Boss

Show that pit who's boss
Unlocked 6 Aug, 2017 @ 10:31am

Preservation of Mass

Break the rules in Test Chamber 07
Unlocked 21 Jun, 2014 @ 5:41pm

Pturretdactyl

Use an Aerial Faith Plate to launch a turret
Unlocked 10 Aug, 2014 @ 11:10pm

Final Transmission

Find the hidden signal in one of the Rat Man's dens
Unlocked 11 Oct, 2014 @ 1:49pm

Good Listener

Take GLaDOS' escape advice
Unlocked 22 Sep, 2019 @ 9:04am

Scanned Alone

Stand in a defective turret detector
Unlocked 17 Sep, 2017 @ 5:55pm

No Hard Feelings

Save a turret from redemption
Unlocked 22 Jun, 2014 @ 1:02pm

Schrodinger's Catch

Catch a blue-painted box before it touches the ground
Unlocked 7 May, 2022 @ 3:37pm

Ship Overboard

Discover the missing experiment
Unlocked 7 May, 2022 @ 4:24pm

Door Prize

Examine all the vitrified test chamber doors
Unlocked 7 May, 2022 @ 4:33pm

Portrait of a Lady

Find a hidden portrait
Unlocked 14 Oct, 2017 @ 5:08pm

You Made Your Point

Refuse to solve the first test in Chapter 8
Unlocked 21 Jul, 2021 @ 11:42pm

Smash TV

Break 11 test chamber monitors
Unlocked 23 Jul, 2021 @ 6:25pm

High Five

Celebrate your cooperative calibration success
Unlocked 9 Aug, 2014 @ 12:11pm

Team Building

Complete all test chambers in the Team Building co-op course
Unlocked 9 Aug, 2014 @ 12:26pm

Confidence Building

Complete all test chambers in the Mass and Velocity co-op course
Unlocked 7 Oct, 2017 @ 4:25pm

Bridge Building

Complete all test chambers in the Hard-Light Surfaces co-op course
Unlocked 29 Sep, 2020 @ 5:16pm

Obstacle Building

Complete all test chambers in the Excursion Funnels co-op course
Unlocked 29 Sep, 2020 @ 5:52pm

You Saved Science

Complete all test chambers in all courses of co-op
Unlocked 24 Oct, 2020 @ 4:44pm

Iron Grip

Never lose a cube in Chamber 6 of the Mass and Velocity co-op course
Unlocked 7 May, 2022 @ 5:33pm

Gesticul-8

Perform all 8 gestures of your own volition in co-op
Unlocked 29 Sep, 2020 @ 5:32pm

Can't Touch This

Dance in front of a turret blocked by a hard light bridge in co-op
Unlocked 7 May, 2022 @ 6:14pm

Empty Gesture

Drop your co-op partner in goo while they are gesturing by removing the bridge under them
Unlocked 7 May, 2022 @ 5:37pm

Party of Three

Find the hidden companion cube in co-op test chamber
Unlocked 7 May, 2022 @ 7:07pm

Narbacular Drop

Place a portal under your co-op partner while they are gesturing
Unlocked 7 Oct, 2017 @ 5:17pm

Professor Portal

After completing co-op, complete Calibration Course online with a friend who hasn’t played before
Unlocked 9 May, 2022 @ 4:00pm

Air Show

Perform 2 aerial gestures before touching the ground in co-op
Unlocked 9 Aug, 2014 @ 3:09pm

Portal Conservation Society

Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements
Unlocked 7 May, 2022 @ 6:11pm

Four Ring Circus

Enter 4 different portals without touching the ground in co-op
Unlocked 7 May, 2022 @ 6:35pm

Triple Crown

Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each
Unlocked 7 May, 2022 @ 5:08pm

Still Alive

Complete Course 4 with neither you nor your co-op partner dying
Unlocked 9 May, 2022 @ 3:21pm

Asking for Trouble

Taunt GLaDOS in front of a camera in each of the five co-op courses
Unlocked 7 May, 2022 @ 5:38pm

Rock Portal Scissors

Win 3 co-op games of rock-paper-scissors in a row
Unlocked 25 Jul, 2021 @ 11:25am

Friends List With Benefits

While playing co-op, hug 3 different people on your friends list
Unlocked 9 May, 2022 @ 3:27pm

Talent Show

Never lose a cube in Chamber 6 of the Mobility Gels co-op course
Unlocked 7 May, 2022 @ 6:23pm