: Adds a third portal (the Time Portal) to travel between two different timelines. Get Peer Review DLC - Xbox
A specialized expansion originally developed for motion-tracking hardware (Razer Hydra or PlayStation Move).
The "Complete" edition typically refers to the base game along with the three primary official expansions. 1. Peer Review (DLC 1) Portal 2 (Inclu ALL DLC)
: An intuitive "blueprint" style interface that allows you to drag and drop cubes, gels, and turrets to build your own chambers.
Released as the first major update, this expansion focuses on expanding the story after the main campaign ends. : Adds a third portal (the Time Portal)
: A professional-grade prequel with a full story and challenging puzzles.
: Over 20 unique chambers (12 single-player, 8 co-op) designed specifically for motion controls. : A professional-grade prequel with a full story
Because the "Complete" experience often involves the modding community, these free standalone titles are highly recommended: