Portal: Revolution achievements

10.84%

Fingerprinter

Smear your dirty fingers over Aperture's beautiful glass

12.05%

Two times the charm

Solve the Chamber 6-2 twice

12.05%

Pacifist

Complete the Chamber 4-9 without knocking over any turrets

12.05%

Supply Chain Problems

Deplete the gel supply in Chamber 4-11

13.25%

Just in time

Deplete the conveyors' supply of Weighted Storage Cubes

13.25%

Still a pacifist

Complete Chamber 5-1 without destroying any turrets

13.25%

Refreshing shower

Take a shower under one of the gel cleansing fields

18.07%

Endless loop

Fling in an endless loop in Chamber 4-11

18.07%

Captivating Looks

Stare at Conly's mannequins for a really long time

21.69%

The fun solution

Solve Chamber 6-6 the fun way

24.10%

Bullseye

Get the ball in 4-10 to land perfectly in the socket

31.33%

Sending a message

Blow up a test chamber sign