Although Killing Floor features more content than the latter two versions, the former version is recommended for new players and experts alike. Like its predecessors, Killing Floor features the return of 'procedurally-generated' maps, or those that are generated for every player upon joining the game additionally, it provides the option for a player to change the level of detail (polygon resolution and texture mapping) of his/her map on the fly, which can be done with a simple click on the map menu. The game is the spawn point of several similar, but different games produced and released by Tripwire. It was initially released as an Unreal Tournament 2021 modification for Windows, and later on as a freeware for OS X, later on for Microsoft Windows. Killing Floor is a first person, co-op first-person zombie shooter video game developed by Tripwire Interactive and published and distributed by Certaintone.
