Preservation of Mass Trophy for Portal 2

Preservation of Mass Trophy

Icon for Preservation of Mass

Preservation of Mass

Break the rules in Test Chamber 07
23.40% of players have unlocked this achievement

Guides

We have no guides for this achievement.

Players

Icon for pherron

pherron

Earned on: Feb 12th 2022, 11:01:21 am

ikemenzi

Earned on: Jul 17th 2016, 2:42:13 pm

Icon for SyIaris

SyIaris

Earned on: Dec 16th 2015, 8:32:01 pm

Icon for hellobion2

hellobion2

Earned on: Sep 3rd 2013, 2:55:33 am

Icon for Myrtille

Myrtille

Earned on: Aug 17th 2013, 7:20:08 pm

Icon for iXxAgExOFxToNYxX

iXxAgExOFxToNYxX

Earned on: Jun 27th 2013, 2:59:27 am

Icon for Artorias01

Artorias01

Earned on: May 16th 2013, 5:43:54 pm

Icon for Herr-Blob

Herr-Blob

Earned on: Apr 7th 2013, 8:26:28 pm

Icon for Banana_Sausage47

Banana_Sausage47

Earned on: Feb 21st 2013, 5:46:23 am

Icon for XxAgExOFXxJoHNxX

XxAgExOFXxJoHNxX

Earned on: Jan 15th 2013, 11:41:48 pm

yewjhin86

Earned on: Sep 16th 2011, 5:40:10 am

Icon for DarkRaisen

DarkRaisen

Earned on: Aug 27th 2011, 4:21:13 am

Icon for SnowVixen

SnowVixen

Earned on: Jul 10th 2011, 8:39:26 pm

Icon for temp-90429768671

temp-90429768671

Earned on: Jun 26th 2011, 12:46:52 pm

xLukk

Earned on: Jun 17th 2011, 9:57:24 am

Icon for QuantumMercury

QuantumMercury

Earned on: May 31st 2011, 12:16:13 am

Icon for MICHI1000

MICHI1000

Earned on: May 24th 2011, 3:21:56 pm

Icon for Hakoom

Hakoom

Earned on: May 11th 2011, 3:58:02 pm

Cloudedpaul

Earned on: Apr 21st 2011, 11:26:19 am

AndyHat

Earned on: Apr 20th 2011, 3:18:25 am