The 1.3 patch for DOOM 3 and updated SDK are now available on the id FTP server, on http://www.doom3.com and on the torrent tracker. Please refer to the documentation after installation for a complete list of changes since version 1.0.

The Linux update adds support for DOOM 3: Resurrection of Evil. See the Linux FAQ for installation instructions.

The updated SDK also includes game source code for the Resurrection of Evil expansion pack.