The Proof of Existence

The Proof of Existence is an Achievement in the category Wonders of the World. To complete this achievement, the player needs to enter Caribert's realm of consciousness during the .
==Trivia==
* The name of this achievement in the Spanish translation is a shortening of the Latin phrase attributed to French philosopher .
==Other Languages==
==Change History==
==Navigation==
es:“... ergo sum”
vi:Minh Chứng Tồn Tại