Preservation of Mass Achievement for Portal 2

Preservation of Mass Achievement

Icon for Preservation of Mass

Preservation of Mass

Break the rules in Test Chamber 07
21.24% of players have unlocked this achievement

20

Guides

We have no guides for this achievement.

Players

Spartan

Earned on: Sep 16th 2017, 4:32:19 pm

MuckPie

Earned on: Nov 27th 2016, 8:52:31 am

RobertCar X2000

Earned on: Dec 20th 2013, 10:51:48 pm

Shadow

Earned on: Oct 17th 2013, 4:51:14 am

Icon for Celtic Force

Celtic Force

Earned on: Aug 29th 2013, 8:46:35 am

Icon for ACBL80

ACBL80

Earned on: Nov 29th 2012, 12:49:53 pm

Icon for Stephan Fenris

Stephan Fenris

Earned on: Jul 11th 2012, 10:43:02 pm

Icon for Legohead 1977

Legohead 1977

Earned on: May 7th 2012, 12:00:18 pm

EndoViper

Earned on: Dec 29th 2011, 2:39:28 pm

smrnov

Earned on: Dec 28th 2011, 12:09:24 am

Icon for LikeTrade

LikeTrade

Earned on: Sep 29th 2011, 3:38:53 am

Icon for Sangriaz

Sangriaz

Earned on: Aug 8th 2011, 10:47:45 am

Icon for d4rk antares

d4rk antares

Earned on: Jul 31st 2011, 12:43:18 pm

Icon for Wrathofzar

Wrathofzar

Earned on: Jun 21st 2011, 1:17:28 am

Icon for Chronic Killer

Chronic Killer

Earned on: Jun 14th 2011, 2:46:47 am

Icon for Koding

Koding

Earned on: May 15th 2011, 12:33:03 am

Icon for Vampyre Shadows

Vampyre Shadows

Earned on: May 8th 2011, 2:13:36 pm

Icon for otakon62

otakon62

Earned on: May 4th 2011, 6:04:21 pm

Icon for Stallion83

Stallion83

Earned on: May 2nd 2011, 1:57:41 am

Icon for Chicool

Chicool

Earned on: May 1st 2011, 12:49:25 pm