Portal 2
Dr. Cortexe
Playtime
68.7h
Completed
Jul 7, 2026
Achievements
32/51
62.7% complete
All Achievements
Bridge Building
Complete all test chambers in the Hard-Light Surfaces co-op course
32%
May 1, 2012
Empty Gesture
Drop your co-op partner in goo while they are gesturing by removing the bridge under them
4.6%
May 1, 2012
Confidence Building
Complete all test chambers in the Mass and Velocity co-op course
40.9%
May 1, 2012
Team Building
Complete all test chambers in the Team Building co-op course
49.4%
Oct 26, 2011
Drop Box
Place a cube on a button without touching the cube
28.9%
Apr 19, 2011
Overclocker
Complete Test Chamber 10 in 70 seconds
4%
Apr 19, 2011
Pit Boss
Show that pit who's boss
7.9%
Apr 19, 2011
Pturretdactyl
Use an Aerial Faith Plate to launch a turret
8.7%
Apr 19, 2011
Good Listener
Take GLaDOS' escape advice
28.3%
Apr 19, 2011
No Hard Feelings
Save a turret from redemption
31%
Apr 19, 2011
Schrodinger's Catch
Catch a blue-painted box before it touches the ground
6.9%
Apr 19, 2011
Door Prize
Examine all the vitrified test chamber doors
7.2%
Apr 19, 2011
Portrait of a Lady
Find a hidden portrait
11.6%
Apr 19, 2011
You Made Your Point
Refuse to solve the first test in Chapter 8
6.5%
Apr 19, 2011
Smash TV
Break 11 test chamber monitors
3.7%
Apr 19, 2011
Lunacy
That just happened
34.1%
Apr 19, 2011
The Part Where He Kills You
This is that part
34.4%
Apr 19, 2011
Tunnel of Funnel
Master the Excursion Funnel
35.1%
Apr 19, 2011
Dual Pit Experiment
Do the same test twice
36.9%
Apr 19, 2011
White Out
Complete the first Conversion Gel test
38.2%
Apr 19, 2011
Stranger Than Friction
Master the Propulsion Gel
39.3%
Apr 19, 2011
Tater Tote
Carry science forward
40.9%
Apr 19, 2011
Vertically Unchallenged
Master the Repulsion Gel
42.8%
Apr 19, 2011
High Five
Celebrate your cooperative calibration success
58.5%
Apr 19, 2011
Stalemate Associate
Press the button!
45.5%
Apr 19, 2011
Scanned Alone
Stand in a defective turret detector
34.7%
Apr 19, 2011
SaBOTour
Make a break for it
46.5%
Apr 19, 2011
Bridge Over Troubling Water
Complete the first Hard Light Bridge test
53.2%
Apr 19, 2011
Preservation of Mass
Break the rules in Test Chamber 07
24.4%
Apr 19, 2011
Undiscouraged
Complete the first Thermal Discouragement Beam test
62.6%
Apr 19, 2011
You Monster
Reunite with GLaDOS
64.7%
Apr 19, 2011
Wake Up Call
Survive the manual override
74%
Apr 19, 2011
Still Alive
Complete Course 4 with neither you nor your co-op partner dying
2.4%
Locked
Talent Show
Never lose a cube in Chamber 6 of the Mobility Gels co-op course
2.6%
Locked
Portal Conservation Society
Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements
2.8%
Locked
Triple Crown
Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each
3%
Locked
Party of Three
Find the hidden companion cube in co-op test chamber
3.5%
Locked
Iron Grip
Never lose a cube in Chamber 6 of the Mass and Velocity co-op course
3.6%
Locked
Friends List With Benefits
While playing co-op, hug 3 different people on your friends list
4.5%
Locked
Final Transmission
Find the hidden signal in one of the Rat Man's dens
5.4%
Locked
Narbacular Drop
Place a portal under your co-op partner while they are gesturing
5.8%
Locked
Professor Portal
After completing co-op, complete Calibration Course online with a friend who hasn’t played before
5.9%
Locked
Four Ring Circus
Enter 4 different portals without touching the ground in co-op
6.8%
Locked
Asking for Trouble
Taunt GLaDOS in front of a camera in each of the five co-op courses
8.9%
Locked
Can't Touch This
Dance in front of a turret blocked by a hard light bridge in co-op
9.8%
Locked
Rock Portal Scissors
Win 3 co-op games of rock-paper-scissors in a row
9.8%
Locked
Ship Overboard
Discover the missing experiment
10.7%
Locked
You Saved Science
Complete all test chambers in all courses of co-op
21.2%
Locked
Obstacle Building
Complete all test chambers in the Excursion Funnels co-op course
26.3%
Locked
Gesticul-8
Perform all 8 gestures of your own volition in co-op
27%
Locked
Air Show
Perform 2 aerial gestures before touching the ground in co-op
33.2%
Locked