LICENSE ( last update: Wed Feb 8 17:16:40 CST 2006 ) ----------------------------------------------------- There are 3 license types used throughout GtkRadiant source code. BSD - modified Berkeley Software Distribution license ( each BSD licensed source file starts with the appropriate header ) LGPL - GNU Lesser General Public License v2.1 ( see LGPL at the root of the tree ) GPL - GNU General Public License ( see GPL at the root of the tree ) How do I check which license applies to a given part of the source code? Each source file in the tree comes with a license header which explains what license applies. To sum up shortly: GPL: ( except some files contributed by Loki Software under BSD license ) GtkRadiant Core GtkRadiant Modules GtkRadiant Libraries Quake III Tools Quake II Tools Background2D Plugin HydraToolz Plugin BSD: JPEG Library MD5 Library DDS Library PicoModel Library PrtView Plugin LGPL BobToolz Plugin GenSurf Plugin