The promised DOOM 3 SDK (Software Development Kit) has been released, offering support for vehicles (thanks: 3DGamers). For details about the game, read our review - the demo and the patch for Windows are locally mirrored as well.

GamersHell.com Local Download:

DOOM 3 SDK v2.0 for Windows (11.5 MB)

DOOM 3 SDK v2.0 for Linux (10.8 MB)

DOOM 3 SDK v2.0 for Windows (11.45MB)

DOOM 3 SDK v2.0 for Linux (10.76MB)