Overhauled version of GTKRadiant designed for use with the Dark Mod (http://www.thedarkmod.com), a Thief-inspired modification making use of the idTech4 (Doom3) game engine. DarkRadiant is capable of editing maps in Doom 3 and Quake 4 format.
DarkRadiant's "Embedded" window layout.
DarkRadiant's Readable Editor
Entity Class Tree (visualises entityDef inheritance)