Portal 2: Peer Review
Portal 2: Peer Review includes an additional course for Portal 2 co-op campaign, dubbed "Art Therapy"; as well as Challenge Mode for both single-player or multiplayer campaign, where players can play specific levels and compete in friends/worldwide leader-board.
- Released
- 4th Oct 2011
- Developer
- Valve
- Publisher
- Valve
- Platforms
- PlayStation 3, Xbox 360
- Genres
- Puzzle, Adventure
Series: Portal