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51 of 51 (100%) Achievements Earned::

Personal Achievements
 

Wake Up Call

Survive the manual override
Unlocked Jul 4, 2017 @ 9:33am

You Monster

Reunite with GLaDOS
Unlocked Jul 4, 2017 @ 9:55am

Undiscouraged

Complete the first Thermal Discouragement Beam test
Unlocked Jul 5, 2017 @ 2:00pm

Bridge Over Troubling Water

Complete the first Hard Light Bridge test
Unlocked Jul 5, 2017 @ 2:33pm

SaBOTour

Make a break for it
Unlocked Jul 5, 2017 @ 3:13pm

Stalemate Associate

Press the button!
Unlocked Jul 5, 2017 @ 3:39pm

Tater Tote

Carry science forward
Unlocked Jul 5, 2017 @ 7:00pm

Vertically Unchallenged

Master the Repulsion Gel
Unlocked Jul 5, 2017 @ 6:41pm

Stranger Than Friction

Master the Propulsion Gel
Unlocked Jul 5, 2017 @ 7:19pm

White Out

Complete the first Conversion Gel test
Unlocked Jul 5, 2017 @ 9:55pm

Tunnel of Funnel

Master the Excursion Funnel
Unlocked Jul 5, 2017 @ 11:19pm

Dual Pit Experiment

Do the same test twice
Unlocked Jul 5, 2017 @ 10:38pm

The Part Where He Kills You

This is that part
Unlocked Jul 6, 2017 @ 12:32pm

Lunacy

That just happened
Unlocked Jul 6, 2017 @ 1:12pm

Drop Box

Place a cube on a button without touching the cube
Unlocked Feb 21, 2023 @ 1:16pm

Overclocker

Complete Test Chamber 10 in 70 seconds
Unlocked Feb 22, 2023 @ 8:10am

Pit Boss

Show that pit who's boss
Unlocked Jul 6, 2017 @ 12:34pm

Preservation of Mass

Break the rules in Test Chamber 07
Unlocked Jul 5, 2017 @ 2:18pm

Pturretdactyl

Use an Aerial Faith Plate to launch a turret
Unlocked Feb 21, 2023 @ 1:12pm

Final Transmission

Find the hidden signal in one of the Rat Man's dens
Unlocked Feb 21, 2023 @ 1:15pm

Good Listener

Take GLaDOS' escape advice
Unlocked Jul 5, 2017 @ 3:13pm

Scanned Alone

Stand in a defective turret detector
Unlocked Jul 5, 2017 @ 3:25pm

No Hard Feelings

Save a turret from redemption
Unlocked Jul 5, 2017 @ 3:23pm

Schrodinger's Catch

Catch a blue-painted box before it touches the ground
Unlocked Feb 22, 2023 @ 9:30am

Ship Overboard

Discover the missing experiment
Unlocked Feb 22, 2023 @ 9:37am

Door Prize

Examine all the vitrified test chamber doors
Unlocked Feb 22, 2023 @ 9:36am

Portrait of a Lady

Find a hidden portrait
Unlocked Feb 22, 2023 @ 9:44am

You Made Your Point

Refuse to solve the first test in Chapter 8
Unlocked Feb 22, 2023 @ 9:49am

Smash TV

Break 11 test chamber monitors
Unlocked Feb 22, 2023 @ 12:17pm

High Five

Celebrate your cooperative calibration success
Unlocked Jul 3, 2017 @ 2:56pm

Team Building

Complete all test chambers in the Team Building co-op course
Unlocked Jul 3, 2017 @ 3:18pm

Confidence Building

Complete all test chambers in the Mass and Velocity co-op course
Unlocked Jul 4, 2017 @ 10:40am

Bridge Building

Complete all test chambers in the Hard-Light Surfaces co-op course
Unlocked Jul 4, 2017 @ 11:45am

Obstacle Building

Complete all test chambers in the Excursion Funnels co-op course
Unlocked Jul 6, 2017 @ 3:28pm

You Saved Science

Complete all test chambers in all courses of co-op
Unlocked Jul 6, 2017 @ 8:57pm

Iron Grip

Never lose a cube in Chamber 6 of the Mass and Velocity co-op course
Unlocked Feb 23, 2023 @ 11:12pm

Gesticul-8

Perform all 8 gestures of your own volition in co-op
Unlocked Jul 4, 2017 @ 12:25pm

Can't Touch This

Dance in front of a turret blocked by a hard light bridge in co-op
Unlocked Feb 21, 2023 @ 12:38am

Empty Gesture

Drop your co-op partner in goo while they are gesturing by removing the bridge under them
Unlocked Feb 23, 2023 @ 11:19pm

Party of Three

Find the hidden companion cube in co-op test chamber
Unlocked Feb 24, 2023 @ 12:15am

Narbacular Drop

Place a portal under your co-op partner while they are gesturing
Unlocked Jul 9, 2017 @ 7:00pm

Professor Portal

After completing co-op, complete Calibration Course online with a friend who hasn’t played before
Unlocked Feb 20, 2023 @ 10:42pm

Air Show

Perform 2 aerial gestures before touching the ground in co-op
Unlocked Feb 21, 2023 @ 12:42am

Portal Conservation Society

Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements
Unlocked Feb 23, 2023 @ 11:40pm

Four Ring Circus

Enter 4 different portals without touching the ground in co-op
Unlocked Feb 23, 2023 @ 11:16pm

Triple Crown

Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each
Unlocked Feb 23, 2023 @ 11:02pm

Still Alive

Complete Course 4 with neither you nor your co-op partner dying
Unlocked Feb 24, 2023 @ 1:11am

Asking for Trouble

Taunt GLaDOS in front of a camera in each of the five co-op courses
Unlocked Feb 23, 2023 @ 11:20pm

Rock Portal Scissors

Win 3 co-op games of rock-paper-scissors in a row
Unlocked Feb 24, 2023 @ 1:12am

Friends List With Benefits

While playing co-op, hug 3 different people on your friends list
Unlocked Feb 24, 2023 @ 8:18pm

Talent Show

Never lose a cube in Chamber 6 of the Mobility Gels co-op course
Unlocked Feb 21, 2023 @ 11:05pm