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51 of 51 (100%) Achievements Earned::

Personal Achievements
 

Wake Up Call

Survive the manual override
Unlocked 1 Jan, 2020 @ 2:02am

You Monster

Reunite with GLaDOS
Unlocked 1 Jan, 2020 @ 3:59am

Undiscouraged

Complete the first Thermal Discouragement Beam test
Unlocked 1 Jan, 2020 @ 4:04am

Bridge Over Troubling Water

Complete the first Hard Light Bridge test
Unlocked 5 Jan, 2020 @ 4:31am

SaBOTour

Make a break for it
Unlocked 7 Jan, 2020 @ 6:06am

Stalemate Associate

Press the button!
Unlocked 7 Jan, 2020 @ 6:37am

Tater Tote

Carry science forward
Unlocked 10 Feb, 2020 @ 5:06pm

Vertically Unchallenged

Master the Repulsion Gel
Unlocked 10 Feb, 2020 @ 4:32pm

Stranger Than Friction

Master the Propulsion Gel
Unlocked 12 Feb, 2020 @ 5:45pm

White Out

Complete the first Conversion Gel test
Unlocked 8 Mar, 2020 @ 7:05am

Tunnel of Funnel

Master the Excursion Funnel
Unlocked 18 Mar, 2020 @ 9:29am

Dual Pit Experiment

Do the same test twice
Unlocked 18 Mar, 2020 @ 8:21am

The Part Where He Kills You

This is that part
Unlocked 19 Mar, 2020 @ 8:17am

Lunacy

That just happened
Unlocked 19 Mar, 2020 @ 8:40am

Drop Box

Place a cube on a button without touching the cube
Unlocked 7 Mar, 2024 @ 11:29pm

Overclocker

Complete Test Chamber 10 in 70 seconds
Unlocked 8 Mar, 2024 @ 1:00am

Pit Boss

Show that pit who's boss
Unlocked 7 Mar, 2024 @ 11:12pm

Preservation of Mass

Break the rules in Test Chamber 07
Unlocked 5 Jan, 2020 @ 3:52am

Pturretdactyl

Use an Aerial Faith Plate to launch a turret
Unlocked 5 Jan, 2020 @ 3:26am

Final Transmission

Find the hidden signal in one of the Rat Man's dens
Unlocked 8 Mar, 2024 @ 2:24am

Good Listener

Take GLaDOS' escape advice
Unlocked 7 Jan, 2020 @ 6:07am

Scanned Alone

Stand in a defective turret detector
Unlocked 7 Jan, 2020 @ 6:21am

No Hard Feelings

Save a turret from redemption
Unlocked 7 Jan, 2020 @ 6:17am

Schrodinger's Catch

Catch a blue-painted box before it touches the ground
Unlocked 8 Mar, 2024 @ 1:00am

Ship Overboard

Discover the missing experiment
Unlocked 10 Feb, 2020 @ 5:03pm

Door Prize

Examine all the vitrified test chamber doors
Unlocked 10 Feb, 2020 @ 5:03pm

Portrait of a Lady

Find a hidden portrait
Unlocked 10 Feb, 2020 @ 5:15pm

You Made Your Point

Refuse to solve the first test in Chapter 8
Unlocked 7 Mar, 2024 @ 11:17pm

Smash TV

Break 11 test chamber monitors
Unlocked 8 Mar, 2024 @ 2:08am

High Five

Celebrate your cooperative calibration success
Unlocked 1 Jan, 2020 @ 1:41am

Team Building

Complete all test chambers in the Team Building co-op course
Unlocked 6 Jan, 2020 @ 1:23am

Confidence Building

Complete all test chambers in the Mass and Velocity co-op course
Unlocked 6 Jan, 2020 @ 7:32am

Bridge Building

Complete all test chambers in the Hard-Light Surfaces co-op course
Unlocked 25 Mar, 2020 @ 2:10am

Obstacle Building

Complete all test chambers in the Excursion Funnels co-op course
Unlocked 25 Mar, 2020 @ 3:52am

You Saved Science

Complete all test chambers in all courses of co-op
Unlocked 25 Mar, 2020 @ 5:31am

Iron Grip

Never lose a cube in Chamber 6 of the Mass and Velocity co-op course
Unlocked 20 Mar, 2023 @ 1:13pm

Gesticul-8

Perform all 8 gestures of your own volition in co-op
Unlocked 25 Mar, 2020 @ 3:05am

Can't Touch This

Dance in front of a turret blocked by a hard light bridge in co-op
Unlocked 17 Jan, 2022 @ 2:03am

Empty Gesture

Drop your co-op partner in goo while they are gesturing by removing the bridge under them
Unlocked 21 Mar, 2023 @ 6:21am

Party of Three

Find the hidden companion cube in co-op test chamber
Unlocked 21 Mar, 2023 @ 2:36pm

Narbacular Drop

Place a portal under your co-op partner while they are gesturing
Unlocked 20 Mar, 2023 @ 12:41pm

Professor Portal

After completing co-op, complete Calibration Course online with a friend who hasn’t played before
Unlocked 19 Mar, 2023 @ 1:59pm

Air Show

Perform 2 aerial gestures before touching the ground in co-op
Unlocked 6 Jan, 2020 @ 6:49am

Portal Conservation Society

Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements
Unlocked 15 Jul, 2023 @ 2:22am

Four Ring Circus

Enter 4 different portals without touching the ground in co-op
Unlocked 26 Feb, 2024 @ 3:56am

Triple Crown

Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each
Unlocked 26 Feb, 2024 @ 3:44am

Still Alive

Complete Course 4 with neither you nor your co-op partner dying
Unlocked 29 Feb, 2024 @ 4:50am

Asking for Trouble

Taunt GLaDOS in front of a camera in each of the five co-op courses
Unlocked 25 Mar, 2020 @ 4:10am

Rock Portal Scissors

Win 3 co-op games of rock-paper-scissors in a row
Unlocked 25 Mar, 2020 @ 2:20am

Friends List With Benefits

While playing co-op, hug 3 different people on your friends list
Unlocked 27 Jan, 2022 @ 10:33am

Talent Show

Never lose a cube in Chamber 6 of the Mobility Gels co-op course
Unlocked 26 Feb, 2024 @ 4:50am