While Patch 1.2 enables the game to run, modern systems often require further tweaks:
: This popular source port supports Resurrection of Evil natively and provides better stability on Windows 10/11. Doom 3 Resurrection Of Evil Patch 1.2
: On newer versions of Windows, you may encounter an "administrator privileges" error. This is often bypassed by running the base game once before attempting the RoE installation. Modern Alternatives While Patch 1
: Insert the Resurrection of Evil (RoE) disc or run its installer. The setup will detect your version and prompt you to install the 1.2 patch automatically. continue the RoE installation.
: Once Patch 1.2 is applied, continue the RoE installation.