Portal

6 of 15 ach. unlocked (40%)
Unstoppable_Luke's achievements in Portal
Beat two Portal advanced maps.
Apr 17, 11
Do whatever it takes to survive.
Apr 17, 11
Beat four Portal advanced maps.
Apr 17, 11
Complete Portal.
Apr 17, 11
Acquire the fully powered Aperture Science Handheld Portal Device.
Apr 17, 11
Make the correct party escort submission position decision.
Apr 17, 11
Earn gold medals on all Portal challenges.
Locked
Earn bronze medals on all Portal challenges.
Locked
Detach security cameras from the walls.
Locked
Knock down a turret with another turret.
Locked
Jump 300 feet.
Locked
Earn silver medals on all Portal challenges.
Locked
Fall 30,000 feet.
Locked
..?
Locked
Beat all six Portal advanced maps.
Locked
(0.0948/d/web8)