Killing Floor (video game)
2009 video game

Killing Floor is a cooperative first-person shooter video game developed and published by Tripwire Interactive. It was originally released as an Unreal Tournament 2004 mod in 2005. A full retail release followed on May 14, 2009, for Microsoft Windows, and for OS X on May 5, 2010. A version for Linux was released via Steam in November 2012.
A sequel, Killing Floor 2, was announced on May 8, 2014, and released on November 18, 2016, worldwide. A third entry, Killing Floor 3, was announced in August 2023 at Gamescom.
Gameplay
Killing Floor is a first-person shooter with two game modes: Killing Floor and Objective. In Killing Floor mode, the player fights waves of zombie-like specimens - or ZEDs - with each wave becoming successively more difficult, until it concludes with a battle against a "boss" specimen called the Patriarch. In Objective mode players complete different challenges while earning in-game money, which they can spend between waves at a trader. The trader buys and sells ammo, armor, and weapons, such as katanas, pipe bombs, flamethrowers and shotguns.
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