Warsow, also stylized as War§ow, is an open source first-person shooter video game.
Warsow's codebase is free and open source 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 were originally licensed under the proprietary Warsow Content License, which allowed the contributors of this media to use the work in a "personal portfolio" but not in any other game, but have around 2012 released under the Creative Commons License Attribution .
The very competitive gameplay of Warsow focuses heavily on movement and trickjumps . Many of the tricks in Warsow originate from the Quake series, including circle-jumping, bunny hopping, strafe-jumping, double jumping, ramp-sliding, and rocket jumping, but Warsow also gives players the ability to dash, dodge or wall jump, tricks that were originally possible in Urban Terror.