1. Portal 2 Achievements
  2. Confidence Building achievement
Portal 2

Portal 2

898
51
4.63
Game action
Portal 2
Lue_Weegee

Lue_Weegee

347
27
29 Dec 15
49h 12m
54%
Lue_Weegee

Confidence Building achievement in Portal 2

Confidence Building

Complete all test chambers in the Mass and Velocity co-op course

Confidence Building0
01 December 2017Online/Offline - These achievements can be obtained in either an online or offline game mode.Cooperative - These achievements can be obtained by two or more players in a cooperative game mode who have met the achievement requirements.Main Storyline - These achievements are gained automatically by progressing through the main game mode.
Hide ads

Have you got any tips or tricks to unlock this achievement?
Add a guide to share them with the community.

Sign in and add a guide
Do you have a question about this achievement? Please post it in the Portal 2 Forum