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From Wikipedia:
Brink (stylized as BRINK) is a first-person shooter video game developed by Splash Damage and published by Bethesda Softworks for Microsoft Windows, PlayStation 3 and Xbox 360 in May 2011.[2]
In Brink, two factions, Resistance and Security, battle in a once-utopian city called The Ark, a floating city above the waters of a flooded Earth.[3][4]
Brink has Steamworks integration, including Valve Anti-Cheat.[5] It runs on id Tech 4 and has an updated rendering framework with improved support for multiple CPU cores.[6] Brink is a first-person shooter with a strong focus on parkour-style movement. Online multiplayer servers hold up to 16 players; players can play cooperatively or competitively, or against artificially-intelligent bots.