Portal 2: Peer Review2011

Portal 2: Peer Review

2011 Valve

Playtime

ShortIt typically takes about 3 hours to finish the game.

Playable on

PlayStation 3
Xbox 360

Game modes

Single player

Details

Launch: October 4, 2011
Developer: Valve
Publisher: Valve
Themes: Comedy
Genres: Puzzle
Adventure

Overview

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.