Preservation of Mass Achievement for Portal 2

Preservation of Mass Achievement

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Preservation of Mass

Break the rules in Test Chamber 07
21.27% of players have unlocked this achievement

20

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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

Shadow

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

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Celtic Force

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

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ACBL80

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

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Stephan Fenris

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

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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

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LikeTrade

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

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Sangriaz

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

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d4rk antares

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

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Wrathofzar

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

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Chronic Killer

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

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Koding

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

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Vampyre Shadows

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

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otakon62

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

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Stallion83

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

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Chicool

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

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StrongProtector

Earned on: Apr 26th 2011, 10:47:41 pm