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38 of 51 (75%) Achievements Earned::

Personal Achievements
 

Wake Up Call

Survive the manual override
Unlocked 28 Jul, 2013 @ 7:49am

You Monster

Reunite with GLaDOS
Unlocked 29 Jul, 2013 @ 5:40am

Undiscouraged

Complete the first Thermal Discouragement Beam test
Unlocked 29 Jul, 2013 @ 5:46am

Bridge Over Troubling Water

Complete the first Hard Light Bridge test
Unlocked 7 Oct, 2013 @ 1:27am

SaBOTour

Make a break for it
Unlocked 29 Dec, 2014 @ 7:26am

Stalemate Associate

Press the button!
Unlocked 29 Dec, 2014 @ 8:08am

Tater Tote

Carry science forward
Unlocked 15 Jan, 2015 @ 6:24am

Vertically Unchallenged

Master the Repulsion Gel
Unlocked 29 Dec, 2014 @ 8:50am

Stranger Than Friction

Master the Propulsion Gel
Unlocked 15 Jan, 2015 @ 6:39am

White Out

Complete the first Conversion Gel test
Unlocked 15 Jan, 2015 @ 7:00am

Tunnel of Funnel

Master the Excursion Funnel
Unlocked 25 Jan, 2015 @ 1:31pm

Dual Pit Experiment

Do the same test twice
Unlocked 15 Jan, 2015 @ 7:51am

The Part Where He Kills You

This is that part
Unlocked 26 Jan, 2015 @ 11:40am

Lunacy

That just happened
Unlocked 26 Jan, 2015 @ 12:16pm

Pit Boss

Show that pit who's boss
Unlocked 26 Jan, 2015 @ 11:42am

Preservation of Mass

Break the rules in Test Chamber 07
Unlocked 3 Jan, 2020 @ 1:46am

Pturretdactyl

Use an Aerial Faith Plate to launch a turret
Unlocked 8 Jun, 2019 @ 12:05pm

Final Transmission

Find the hidden signal in one of the Rat Man's dens
Unlocked 23 Nov, 2015 @ 11:44am

Good Listener

Take GLaDOS' escape advice
Unlocked 29 Dec, 2014 @ 7:27am

Scanned Alone

Stand in a defective turret detector
Unlocked 3 Jan, 2020 @ 6:29am

No Hard Feelings

Save a turret from redemption
Unlocked 29 Dec, 2014 @ 7:42am

Portrait of a Lady

Find a hidden portrait
Unlocked 15 Jan, 2015 @ 6:29am

High Five

Celebrate your cooperative calibration success
Unlocked 15 Oct, 2014 @ 10:54am

Team Building

Complete all test chambers in the Team Building co-op course
Unlocked 15 Oct, 2014 @ 11:12am

Confidence Building

Complete all test chambers in the Mass and Velocity co-op course
Unlocked 16 Oct, 2014 @ 11:05am

Bridge Building

Complete all test chambers in the Hard-Light Surfaces co-op course
Unlocked 20 Mar, 2015 @ 1:18pm

Obstacle Building

Complete all test chambers in the Excursion Funnels co-op course
Unlocked 31 Mar, 2015 @ 9:06am

You Saved Science

Complete all test chambers in all courses of co-op
Unlocked 19 Oct, 2015 @ 1:27am

Gesticul-8

Perform all 8 gestures of your own volition in co-op
Unlocked 20 Mar, 2015 @ 1:50pm

Can't Touch This

Dance in front of a turret blocked by a hard light bridge in co-op
Unlocked 8 Jun, 2019 @ 1:26pm

Empty Gesture

Drop your co-op partner in goo while they are gesturing by removing the bridge under them
Unlocked 16 Oct, 2014 @ 11:14am

Narbacular Drop

Place a portal under your co-op partner while they are gesturing
Unlocked 16 Oct, 2014 @ 10:52am

Professor Portal

After completing co-op, complete Calibration Course online with a friend who hasn’t played before
Unlocked 5 Jan, 2020 @ 12:57pm

Air Show

Perform 2 aerial gestures before touching the ground in co-op
Unlocked 15 Oct, 2014 @ 11:19am

Four Ring Circus

Enter 4 different portals without touching the ground in co-op
Unlocked 29 May, 2019 @ 9:06am

Asking for Trouble

Taunt GLaDOS in front of a camera in each of the five co-op courses
Unlocked 31 Mar, 2015 @ 9:10am

Rock Portal Scissors

Win 3 co-op games of rock-paper-scissors in a row
Unlocked 16 Oct, 2014 @ 10:44am

Friends List With Benefits

While playing co-op, hug 3 different people on your friends list
Unlocked 4 Oct, 2019 @ 10:08am



Drop Box

Place a cube on a button without touching the cube

Overclocker

Complete Test Chamber 10 in 70 seconds

Schrodinger's Catch

Catch a blue-painted box before it touches the ground

Ship Overboard

Discover the missing experiment

Door Prize

Examine all the vitrified test chamber doors

You Made Your Point

Refuse to solve the first test in Chapter 8

Smash TV

Break 11 test chamber monitors

Iron Grip

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

Party of Three

Find the hidden companion cube in co-op test chamber

Portal Conservation Society

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

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