Achievement Unlocked Visibility Global Unlocks
Still Alive
Complete Course 4 with neither you nor your co-op partner dying 		2021-05-23 07:11:59 2.4%
Talent Show
Never lose a cube in Chamber 6 of the Mobility Gels co-op course 		2021-05-23 07:11:59 2.6%
Portal Conservation Society
Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements 		2021-05-23 07:11:59 2.7%
Triple Crown
Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each 		2021-05-23 07:11:59 3.0%
Friends List With Benefits
While playing co-op, hug 3 different people on your friends list 		2021-05-23 07:11:59 4.4%
Iron Grip
Never lose a cube in Chamber 6 of the Mass and Velocity co-op course 		2021-05-23 07:11:59 3.6%
Party of Three
Find the hidden companion cube in co-op test chamber 		2021-05-23 07:11:59 3.6%
Smash TV
Break 11 test chamber monitors 		2021-05-23 07:11:59 3.7%
Professor Portal
After completing co-op, complete Calibration Course online with a friend who hasn’t played before 		2021-05-23 07:11:59 5.8%
Overclocker
Complete Test Chamber 10 in 70 seconds 		2021-05-23 07:11:59 4.0%
Empty Gesture
Drop your co-op partner in goo while they are gesturing by removing the bridge under them 		2021-05-23 07:11:59 4.6%
Four Ring Circus
Enter 4 different portals without touching the ground in co-op 		2021-05-23 07:11:59 6.9%
Narbacular Drop
Place a portal under your co-op partner while they are gesturing 		2021-05-23 07:11:59 5.9%
Final Transmission
Find the hidden signal in one of the Rat Man's dens 		2021-05-23 07:11:59 5.7%
Schrodinger's Catch
Catch a blue-painted box before it touches the ground 		2021-05-23 07:11:59 7.0%
You Made Your Point
Refuse to solve the first test in Chapter 8 		2021-05-23 07:11:59 6.8%
Pit Boss
Show that pit who's boss 		2021-05-23 07:11:59 8.0%
Door Prize
Examine all the vitrified test chamber doors 		2021-05-23 07:11:59 7.5%
Asking for Trouble
Taunt GLaDOS in front of a camera in each of the five co-op courses 		2021-05-23 07:11:59 9.1%
Rock Portal Scissors
Win 3 co-op games of rock-paper-scissors in a row 		2021-05-23 07:11:59 9.9%
Pturretdactyl
Use an Aerial Faith Plate to launch a turret 		2021-05-23 07:11:59 9.1%
Can't Touch This
Dance in front of a turret blocked by a hard light bridge in co-op 		2021-05-23 07:11:59 10.0%
Ship Overboard
Discover the missing experiment 		2021-05-23 07:11:59 11.0%
Portrait of a Lady
Find a hidden portrait 		2021-05-23 07:11:59 12.1%
Preservation of Mass
Break the rules in Test Chamber 07 		2021-05-23 07:11:59 25.1%
Drop Box
Place a cube on a button without touching the cube 		2021-05-23 07:11:59 29.7%
Lunacy
That just happened 		2021-05-23 07:11:59 35.3%
The Part Where He Kills You
This is that part 		2021-05-23 07:11:59 35.6%
Tunnel of Funnel
Master the Excursion Funnel 		2021-05-23 07:11:59 36.3%
Dual Pit Experiment
Do the same test twice 		2021-05-23 07:11:59 38.3%
White Out
Complete the first Conversion Gel test 		2021-05-23 07:11:59 39.6%
Stranger Than Friction
Master the Propulsion Gel 		2021-05-23 07:11:59 40.8%
Tater Tote
Carry science forward 		2021-05-23 07:11:59 42.4%
Vertically Unchallenged
Master the Repulsion Gel 		2021-05-23 07:11:59 44.4%
You Saved Science
Complete all test chambers in all courses of co-op 		2021-02-08 12:03:29 21.3%
Obstacle Building
Complete all test chambers in the Excursion Funnels co-op course 		2021-02-08 10:49:40 26.4%
Gesticul-8
Perform all 8 gestures of your own volition in co-op 		2021-02-08 10:16:02 27.3%
Air Show
Perform 2 aerial gestures before touching the ground in co-op 		2021-02-08 09:55:08 33.9%
Bridge Building
Complete all test chambers in the Hard-Light Surfaces co-op course 		2021-02-08 09:53:13 32.2%
Confidence Building
Complete all test chambers in the Mass and Velocity co-op course 		2021-02-07 12:46:38 41.1%
Team Building
Complete all test chambers in the Team Building co-op course 		2021-02-07 11:57:08 49.6%
High Five
Celebrate your cooperative calibration success 		2021-02-07 11:19:16 58.8%
Stalemate Associate
Press the button! 		2021-01-16 09:49:52 47.1%
Scanned Alone
Stand in a defective turret detector 		2021-01-16 09:36:27 35.8%
No Hard Feelings
Save a turret from redemption 		2021-01-16 09:34:00 31.9%
Good Listener
Take GLaDOS' escape advice 		2021-01-16 09:26:12 29.3%
SaBOTour
Make a break for it 		2021-01-16 09:25:40 48.1%
Bridge Over Troubling Water
Complete the first Hard Light Bridge test 		2021-01-16 08:50:21 55.1%
Undiscouraged
Complete the first Thermal Discouragement Beam test 		2020-08-24 10:42:34 64.6%
You Monster
Reunite with GLaDOS 		2018-12-19 08:40:07 66.6%
Wake Up Call
Survive the manual override 		2018-01-03 00:55:09 75.9%