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The Orange Box
For:
PC
,
PlayStation 3
,
Xbox 360
,
Mac
Genres:
First-Person Shooter
Publisher:
Developer:
Aperture Science Achievement
Aperture Science
Earn gold medals on all Portal challenges.
1.20% of players have unlocked this achievement
40
Guides
We have no guides for this achievement.
Players
Legohead 1977
Earned on: Aug 10th 2015, 8:14:27 am
Sangriaz
Earned on: Jul 20th 2013, 5:35:18 pm
gomuhimo RSC
Earned on: May 13th 2012, 3:02:01 pm
Chicool
Earned on: May 9th 2011, 12:20:39 am
weffalump
Earned on: Apr 29th 2011, 1:45:56 am
Gottle
Earned on: Apr 19th 2011, 10:43:02 pm
smrnov
Earned on: Mar 1st 2011, 7:21:55 pm
BAZ1010
Earned on: Jan 8th 2011, 12:00:00 am
Celtic Force
Earned on: Apr 7th 2009, 4:06:26 pm
F0gg13
Earned on: Nov 15th 2008, 12:00:00 am
THE GAME 610
Earned Offline
XxKANDExX
Earned Offline
WAKONDA
Earned Offline