Portal 2: Peer Review

| DLC/Addon

Genres:

Puzzle

Adventure

Themes:

Comedy

Perspective:

First person

Game modes:

Single player

Released on:

04/10/2011

Platforms:

PlayStation 3

Xbox 360

Involved Companies:

Valve

Developer

Publisher

Summary

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.