Professor Portal Trophy for Portal 2

Professor Portal Trophy

Icon for Professor Portal

Professor Portal

After completing co-op, complete Calibration Course online with a friend who hasn't played before
1.70% of players have unlocked this achievement

Guides

We have no guides for this achievement.

Players

Icon for SyIaris

SyIaris

Earned on: Dec 19th 2015, 11:25:13 pm

Icon for Myrtille

Myrtille

Earned on: Aug 18th 2013, 2:23:38 am

Icon for iXxAgExOFxToNYxX

iXxAgExOFxToNYxX

Earned on: Jul 26th 2013, 6:44:51 am

Icon for hellobion2

hellobion2

Earned on: May 21st 2013, 5:31:30 am

Icon for Artorias01

Artorias01

Earned on: May 20th 2013, 8:34:45 pm

Icon for Banana_Sausage47

Banana_Sausage47

Earned on: Feb 27th 2013, 6:22:36 pm

Icon for XxAgExOFXxJoHNxX

XxAgExOFXxJoHNxX

Earned on: Jan 23rd 2013, 11:55:26 am

Ragowit

Earned on: Oct 9th 2011, 11:58:22 am

yewjhin86

Earned on: Sep 18th 2011, 1:23:13 pm

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DarkRaisen

Earned on: Aug 28th 2011, 4:29:36 am

Icon for temp-90429768671

temp-90429768671

Earned on: Jul 17th 2011, 4:50:53 am

Icon for SnowVixen

SnowVixen

Earned on: Jul 11th 2011, 7:05:45 pm

xLukk

Earned on: Jun 15th 2011, 2:57:26 pm

Icon for QuantumMercury

QuantumMercury

Earned on: May 29th 2011, 7:27:04 pm

Icon for broodwars

broodwars

Earned on: May 21st 2011, 3:30:34 am

Icon for MICHI1000

MICHI1000

Earned on: May 18th 2011, 9:58:17 pm

Icon for Hakoom

Hakoom

Earned on: May 16th 2011, 11:40:35 pm