If you are using a retail/physical copy of the expansion, Patch 1.2 is typically included on the disc and must be applied for the expansion to function. For modern digital versions (like those on Steam), this patch is generally pre-integrated, as the expansion was consolidated with the base game in August 2022.

: 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

: Once Patch 1.2 is applied, continue the RoE installation.

: 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.

Doom 3 Resurrection Of Evil Patch 1.2 -

If you are using a retail/physical copy of the expansion, Patch 1.2 is typically included on the disc and must be applied for the expansion to function. For modern digital versions (like those on Steam), this patch is generally pre-integrated, as the expansion was consolidated with the base game in August 2022.

: 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 Doom 3 Resurrection Of Evil Patch 1.2

: Once Patch 1.2 is applied, continue the RoE installation. If you are using a retail/physical copy of

: 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. this patch is generally pre-integrated