| 1 |
|
10.70%
|
Ship Overboard: Discover the missing experiment |
ACH.NO_BOAT |
| 2 |
|
7.30%
|
Door Prize: Examine all the vitrified test chamber doors |
ACH.A3_DOORS |
| 3 |
|
5.80%
|
Narbacular Drop: Place a portal under your co-op partner while they are gesturing |
ACH.PORTAL_TAUNT |
| 4 |
|
5.80%
|
Professor Portal: After completing co-op, complete Calibration Course online with a friend who hasn’t played before |
ACH.TEACHER |
| 5 |
|
4.60%
|
Empty Gesture: Drop your co-op partner in goo while they are gesturing by removing the bridge under them |
ACH.PARTNER_DROP |
| 6 |
|
3.60%
|
Smash TV: Break 11 test chamber monitors |
ACH.BREAK_MONITORS |
| 7 |
|
3.50%
|
Party of Three: Find the hidden companion cube in co-op test chamber |
ACH.PARTY_OF_THREE |
| 8 |
|
3.00%
|
Triple Crown: Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each |
ACH.SPEED_RUN_COOP |
| 9 |
|
2.70%
|
Portal Conservation Society: Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements |
ACH.LIMITED_PORTALS |
| 10 |
|
2.60%
|
Talent Show: Never lose a cube in Chamber 6 of the Mobility Gels co-op course |
ACH.SUMMER_SALE |
| 11 |
|
2.40%
|
Still Alive: Complete Course 4 with neither you nor your co-op partner dying |
ACH.STAYING_ALIVE |
Steam Stats v3
