💡 If the server doesn’t appear, use and enter the host’s LAN IP (e.g., 192.168.1.10 ).
Furthermore, the 1.3.1 patch is the prerequisite for the expansion pack, Doom 3: Resurrection of Evil . This expansion is essential for a complete co-op experience, as many community mods utilize its assets, weapons (like the Grabber), and environments to expand the gameplay. 💡 If the server doesn’t appear, use and
To play and its expansion, Resurrection of Evil (RoE) , in cooperative mode on version 1.3.1 , you must use the OpenCoop mod . While the base games only support competitive multiplayer, OpenCoop allows up to four players to complete the full single-player campaigns together over LAN or the internet. Core Requirements To play and its expansion, Resurrection of Evil
Without version 1.3.1, open co-op mods will either crash on launch or refuse to sync player animations. If you own the game on Steam or GOG, you likely already have 1.3.1. However, the original CD release requires manual patching. If you own the game on Steam or
⚠️ OpenCo-op 1.3.1 does not support the BFG Edition (remaster). Use the original 2004/2005 version.
coop_forceRespawn 1 sv_maxClients 4 coop_sharePowerups 1