Achievement Unlocked Visibility Global Unlocks
Professor Portal
After completing co-op, complete Calibration Course online with a friend who hasn’t played before
2018-11-24 10:07:52 5.8%
Friends List With Benefits
While playing co-op, hug 3 different people on your friends list
2018-05-18 20:50:04 4.4%
Still Alive
Complete Course 4 with neither you nor your co-op partner dying
2017-12-25 16:51:35 2.3%
Four Ring Circus
Enter 4 different portals without touching the ground in co-op
2017-12-24 20:16:37 6.9%
Talent Show
Never lose a cube in Chamber 6 of the Mobility Gels co-op course
2017-12-24 19:52:24 2.6%
Party of Three
Find the hidden companion cube in co-op test chamber
2017-12-24 12:17:05 3.6%
Triple Crown
Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each
2017-12-24 12:03:08 3.0%
Iron Grip
Never lose a cube in Chamber 6 of the Mass and Velocity co-op course
2017-12-24 11:50:30 3.6%
Portal Conservation Society
Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements
2017-12-24 11:39:06 2.7%
You Saved Science
Complete all test chambers in all courses of co-op
2017-12-23 16:10:35 21.3%
Asking for Trouble
Taunt GLaDOS in front of a camera in each of the five co-op courses
2017-12-23 14:14:48 9.1%
Obstacle Building
Complete all test chambers in the Excursion Funnels co-op course
2017-12-23 14:05:33 26.4%
Narbacular Drop
Place a portal under your co-op partner while they are gesturing
2017-12-23 13:41:46 5.9%
Gesticul-8
Perform all 8 gestures of your own volition in co-op
2017-12-23 11:38:24 27.3%
Air Show
Perform 2 aerial gestures before touching the ground in co-op
2017-12-23 11:11:21 33.9%
Bridge Building
Complete all test chambers in the Hard-Light Surfaces co-op course
2017-12-23 11:07:15 32.2%
Can't Touch This
Dance in front of a turret blocked by a hard light bridge in co-op
2017-12-23 10:24:41 10.0%
Empty Gesture
Drop your co-op partner in goo while they are gesturing by removing the bridge under them
2017-12-22 20:31:55 4.6%
Confidence Building
Complete all test chambers in the Mass and Velocity co-op course
2017-12-22 20:26:20 41.0%
Team Building
Complete all test chambers in the Team Building co-op course
2017-12-22 19:27:53 49.6%
Rock Portal Scissors
Win 3 co-op games of rock-paper-scissors in a row
2017-12-22 19:06:55 9.9%
High Five
Celebrate your cooperative calibration success
2017-12-22 18:49:44 58.8%
Door Prize
Examine all the vitrified test chamber doors
2016-05-15 19:33:40 7.5%
Portrait of a Lady
Find a hidden portrait
2016-05-15 18:55:17 12.1%
Overclocker
Complete Test Chamber 10 in 70 seconds
2016-05-15 18:43:10 4.0%
Pit Boss
Show that pit who's boss
2016-05-15 17:51:06 8.0%
You Made Your Point
Refuse to solve the first test in Chapter 8
2016-05-15 17:35:16 6.8%
Good Listener
Take GLaDOS' escape advice
2016-05-15 16:54:55 29.4%
Preservation of Mass
Break the rules in Test Chamber 07
2016-05-15 16:13:58 25.2%
Final Transmission
Find the hidden signal in one of the Rat Man's dens
2016-05-15 16:08:05 5.7%
Drop Box
Place a cube on a button without touching the cube
2016-05-15 16:05:15 29.7%
Lunacy
That just happened
2016-05-15 14:14:52 35.3%
The Part Where He Kills You
This is that part
2016-05-15 13:15:35 35.6%
Smash TV
Break 11 test chamber monitors
2016-05-15 13:05:40 3.7%
Tunnel of Funnel
Master the Excursion Funnel
2016-05-15 12:50:31 36.4%
Dual Pit Experiment
Do the same test twice
2016-05-15 10:24:37 38.3%
White Out
Complete the first Conversion Gel test
2016-05-15 09:39:04 39.7%
Stranger Than Friction
Master the Propulsion Gel
2016-05-15 09:11:25 40.9%
Tater Tote
Carry science forward
2016-05-14 19:50:05 42.5%
Ship Overboard
Discover the missing experiment
2016-05-14 19:46:46 11.0%
Schrodinger's Catch
Catch a blue-painted box before it touches the ground
2016-05-14 19:29:21 7.0%
Vertically Unchallenged
Master the Repulsion Gel
2016-05-14 19:09:09 44.5%
Stalemate Associate
Press the button!
2016-05-14 17:56:12 47.2%
Scanned Alone
Stand in a defective turret detector
2016-05-14 17:33:14 35.9%
No Hard Feelings
Save a turret from redemption
2016-05-14 17:28:29 31.9%
SaBOTour
Make a break for it
2016-05-14 17:16:02 48.2%
Pturretdactyl
Use an Aerial Faith Plate to launch a turret
2013-02-20 17:00:45 9.1%
Bridge Over Troubling Water
Complete the first Hard Light Bridge test
2012-12-09 11:53:21 55.2%
Undiscouraged
Complete the first Thermal Discouragement Beam test
2012-09-01 15:21:42 64.7%
You Monster
Reunite with GLaDOS
2012-09-01 15:14:17 66.7%
Wake Up Call
Survive the manual override
2012-07-25 18:18:11 76.0%