GtkRadiant

GtkRadiant is a multi-platform version of the original Q3Radiant editor used by id Software to create Quake III Arena maps. It was handed over to the community, ported to the Gtk toolkit and released under the GNU General Public License.

Supported Games

 * Quetoo
 * Xonotic
 * Neverball
 * Nexuiz
 * Tremulous
 * OpenArena