Doom 3: BFG Edition source code

The Doom 3: BFG Edition source code was released under the GPLv3 license by id Software on November 26, 2012, a little over a month after Doom 3: BFG Edition itself, and a year after the original Doom 3 source code was released.

It contains a few architectural changes that make it incompatible with the original Doom 3, backported networking code and dynamic resolution adjustment from id Tech 5, and the inclusion of Doom Classic based off of the Xbox 1 and XBLA commerical ports.