1 |
|
11.80%
|
Portrait of a Lady: Find a hidden portrait |
ACH.PORTRAIT |
2 |
|
10.80%
|
Ship Overboard: Discover the missing experiment |
ACH.NO_BOAT |
3 |
|
7.30%
|
Door Prize: Examine all the vitrified test chamber doors |
ACH.A3_DOORS |
4 |
|
6.90%
|
Schrodinger's Catch: Catch a blue-painted box before it touches the ground |
ACH.CATCH_CRAZY_BOX |
5 |
|
6.90%
|
Four Ring Circus: Enter 4 different portals without touching the ground in co-op |
ACH.FOUR_PORTALS |
6 |
|
6.60%
|
You Made Your Point: Refuse to solve the first test in Chapter 8 |
ACH.DEFIANT |
7 |
|
5.80%
|
Narbacular Drop: Place a portal under your co-op partner while they are gesturing |
ACH.PORTAL_TAUNT |
8 |
|
5.50%
|
Final Transmission: Find the hidden signal in one of the Rat Man's dens |
ACH.CLEAN_UP |
9 |
|
4.60%
|
Empty Gesture: Drop your co-op partner in goo while they are gesturing by removing the bridge under them |
ACH.PARTNER_DROP |
10 |
|
3.60%
|
Iron Grip: Never lose a cube in Chamber 6 of the Mass and Velocity co-op course |
ACH.NICE_CATCH |
11 |
|
3.60%
|
Smash TV: Break 11 test chamber monitors |
ACH.BREAK_MONITORS |
12 |
|
3.50%
|
Party of Three: Find the hidden companion cube in co-op test chamber |
ACH.PARTY_OF_THREE |
13 |
|
3.00%
|
Triple Crown: Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each |
ACH.SPEED_RUN_COOP |
14 |
|
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 |
15 |
|
2.60%
|
Talent Show: Never lose a cube in Chamber 6 of the Mobility Gels co-op course |
ACH.SUMMER_SALE |
16 |
|
2.40%
|
Still Alive: Complete Course 4 with neither you nor your co-op partner dying |
ACH.STAYING_ALIVE |