Quake III is a free to play multiplayer shooting game is originally created by Id Software. Due to innovation it is available in many gaming devices such as PS2 (Bullfrog Productions), Dreamcast (Raster Productions), and Xbox 360 (Pi Studios) that has different developers. This has five gaming options and those are death match, Capture the flag, free for all, duel and clan arena. The users’ needs to have at least a Pentium 3 800MHz, HDD (500MB), RAM (256MB), and Video Card (16MB). Quake III runs with windows operating system but has some errors with windows 7. According to some gamers it works with windows 7 but it has to be installed from the CD. This can be play online and local network connection. One of the essentials in order to play this game is the OpenGL graphic accelerator. It has an id Tech 3 engine developed by Quake III itself. There are AIs (Artificial Intelligence) available in this game that has 5 difficulty options.