Peer Review

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Peer Review
Developer(s)	Valve
Release date(s)	October 4, 2011
Genre(s)	First-person shooter, puzzle video game
Mode(s)	Single-player, multiplayer co-op
Platform(s)	Microsoft Windows, Mac OS X, Xbox 360, PlayStation 3
Rating(s)	ESRB: Everyone 10+ CERO: A (All Ages) PEGI: 12
Distribution	Electronic Arts, Steam
System req	PC, Mac, PlayStation 3, Xbox 360
Input	Keyboard and mouse, Xbox 360 Controller, DualShock 3
Engine	Source
Series	Portal

 

Peer Review is a free DLC made for Portal 2 aimed at expanding upon the co-op part of the game.

It continues the story of ATLAS and P-body as they assist GLaDOS in finding a mysterious intruder in the facility through the Cooperative Testing Course "Art Therapy", and adds a challenge mode for both singleplayer and co-op maps, allowing a player to race certain maps, trying to place the least amount of portals in the shortest amount of time, as well as compare their scores with other users.

Characters

• ATLAS and P-body
• GLaDOS
• The bird and her three chicks

References