Warsow, often abbreviated as WSW or W§W (the latter following its logo), is a multiplayer first-person shooter computer game first publicly released on June 8, 2005. The game is actively developed by a crew of freelance software developers and artists. Warsow prides itself on high-quality content standards with thorough testing by selected members of the community. Warsow’s codebase is free software, distributed under the terms of the GPL; it is built upon Qfusion, an advanced modification of the Quake II engine. The artwork and other media are licensed under the proprietary Warsow Content License, which allows the contributors of this media to use the work in a "personal portfolio" but not in any other game. Because of this Warsow is freeware, not open source.
Warsow is loosely based on the E-novel Chasseur de bots by Fabrice Demurger. The novel is the basis of the game's cyberpunk visual style, which is achieved by combining cel-shaded cartoon-like graphics with dark, flashy and dirty textures. Since visual clarity is important in maintaining competitive gameplay, Warsow tries to keep effects minimalistic, clear and visible.