Smokin’ Guns is a first-person shooter video game. Smokin’ Guns is intended to be a semi-realistic simulation of the American Old West’s atmosphere and was developed on id Software’s Quake III Arena Engine. Gameplay as well as locations are inspired by Western movies, particularly those from the Spaghetti western genre. Smokin’ Guns’s codebase is free and open source software, distributed under the terms of the GPL; it is built upon ioquake3, an upgrade of the original Quake III engine. The artwork and other media are licensed under a proprietary non free license. Smokin’ Guns was originally developed by Iron Claw Interactive under the name Western Quake 3.