| Achievement | Unlocked | Visibility | Global Unlocks | |
|---|---|---|---|---|
|
Professor Portal
After completing co-op, complete Calibration Course online with a friend who hasn’t played before |
2023-08-11 15:07:14 | 5.8% | ||
|
Still Alive
Complete Course 4 with neither you nor your co-op partner dying |
2019-06-06 00:22:28 | 2.4% | ||
|
Talent Show
Never lose a cube in Chamber 6 of the Mobility Gels co-op course |
2019-06-05 22:14:15 | 2.6% | ||
|
Four Ring Circus
Enter 4 different portals without touching the ground in co-op |
2019-06-05 22:11:58 | 6.9% | ||
|
Iron Grip
Never lose a cube in Chamber 6 of the Mass and Velocity co-op course |
2019-06-05 21:50:41 | 3.6% | ||
|
Triple Crown
Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each |
2019-06-05 21:32:29 | 3.0% | ||
|
Friends List With Benefits
While playing co-op, hug 3 different people on your friends list |
2019-06-05 20:39:20 | 4.4% | ||
|
Asking for Trouble
Taunt GLaDOS in front of a camera in each of the five co-op courses |
2017-08-27 22:06:08 | 9.1% | ||
|
You Saved Science
Complete all test chambers in all courses of co-op |
2017-08-27 21:59:15 | 21.3% | ||
|
Narbacular Drop
Place a portal under your co-op partner while they are gesturing |
2017-08-27 21:06:26 | 5.9% | ||
|
Obstacle Building
Complete all test chambers in the Excursion Funnels co-op course |
2017-08-27 20:42:34 | 26.4% | ||
|
Party of Three
Find the hidden companion cube in co-op test chamber |
2017-08-27 20:39:56 | 3.6% | ||
|
Gesticul-8
Perform all 8 gestures of your own volition in co-op |
2017-08-27 19:56:49 | 27.3% | ||
|
Bridge Building
Complete all test chambers in the Hard-Light Surfaces co-op course |
2017-08-27 18:55:15 | 32.2% | ||
|
Can't Touch This
Dance in front of a turret blocked by a hard light bridge in co-op |
2017-07-29 18:03:17 | 10.0% | ||
|
Portal Conservation Society
Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements |
2017-07-29 17:46:25 | 2.7% | ||
|
Empty Gesture
Drop your co-op partner in goo while they are gesturing by removing the bridge under them |
2017-07-29 17:32:48 | 4.6% | ||
|
Confidence Building
Complete all test chambers in the Mass and Velocity co-op course |
2017-07-27 19:38:28 | 41.1% | ||
|
Air Show
Perform 2 aerial gestures before touching the ground in co-op |
2017-07-27 18:51:34 | 33.9% | ||
|
Rock Portal Scissors
Win 3 co-op games of rock-paper-scissors in a row |
2017-07-27 18:32:20 | 9.9% | ||
|
Team Building
Complete all test chambers in the Team Building co-op course |
2017-07-27 18:28:19 | 49.6% | ||
|
High Five
Celebrate your cooperative calibration success |
2017-07-27 18:03:33 | 58.8% | ||
|
Wake Up Call
Survive the manual override |
2017-07-27 17:49:36 | 75.9% | ||
|
You Monster
Reunite with GLaDOS |
2017-07-27 17:40:57 | 66.6% | ||
|
Good Listener
Take GLaDOS' escape advice |
29.3% | |||
|
Preservation of Mass
Break the rules in Test Chamber 07 |
25.1% | |||
|
No Hard Feelings
Save a turret from redemption |
31.9% | |||
|
Lunacy
That just happened |
35.3% | |||
|
Schrodinger's Catch
Catch a blue-painted box before it touches the ground |
7.0% | |||
|
Overclocker
Complete Test Chamber 10 in 70 seconds |
4.0% | |||
|
Bridge Over Troubling Water
Complete the first Hard Light Bridge test |
55.1% | |||
|
Stalemate Associate
Press the button! |
47.1% | |||
|
SaBOTour
Make a break for it |
48.1% | |||
|
Smash TV
Break 11 test chamber monitors |
3.7% | |||
|
Drop Box
Place a cube on a button without touching the cube |
29.7% | |||
|
Vertically Unchallenged
Master the Repulsion Gel |
44.4% | |||
|
Tater Tote
Carry science forward |
42.4% | |||
|
Tunnel of Funnel
Master the Excursion Funnel |
36.3% | |||
|
Dual Pit Experiment
Do the same test twice |
38.3% | |||
|
The Part Where He Kills You
This is that part |
35.6% | |||
|
White Out
Complete the first Conversion Gel test |
39.7% | |||
|
Undiscouraged
Complete the first Thermal Discouragement Beam test |
64.6% | |||
|
Door Prize
Examine all the vitrified test chamber doors |
7.5% | |||
|
Pturretdactyl
Use an Aerial Faith Plate to launch a turret |
9.1% | |||
|
You Made Your Point
Refuse to solve the first test in Chapter 8 |
6.8% | |||
|
Ship Overboard
Discover the missing experiment |
11.0% | |||
|
Scanned Alone
Stand in a defective turret detector |
35.8% | |||
|
Stranger Than Friction
Master the Propulsion Gel |
40.8% | |||
|
Pit Boss
Show that pit who's boss |
8.0% | |||
|
Final Transmission
Find the hidden signal in one of the Rat Man's dens |
5.7% | |||
|
Portrait of a Lady
Find a hidden portrait |
12.1% |