Urban Terror is a free multiplayer first person shooter developed by FrozenSand, that (thanks to the ioquake3-code) does not require Quake III Arena anymore. It is available for Windows, Linux and Macintosh.
Urban Terror can be described as a Hollywood tactical shooter; somewhat realism based, but the motto is "fun over realism". This results in a very unique, enjoyable and addictive game.
The Urban Terror user interface (UI) has been completely redone and scripted from scratch. Using technology from id Software’s latest Quake 3 Team Arena release, some great effects had been created and added many more menus that were not included in Team Arena. The UI is divided into two sections, out of game menus and in game menus. Both can be used to change controls, system settings, player settings, and other applicable settings. In the next few subsections you will find images of what these sections look like and what each button does.