How to Play Multiplayer Mods

See Commands (CMD) before proceeding.

When starting DOOM Eternal from the launcher on Steam, launch the main version of DOOM Eternal, and not "Play DOOM Eternal with Mods". The latter specifically refers to the official idMods format and bears no relevance to the community mod injector format. This will run a separate version of the game that does not support multiplayer.

How to Play

• How to Install Mods (general guide): https://wiki.eternalmods.com/books/eternal-how-to-install-mods/page/how-to-install-mods-doom-eternal
  
  
• Get the latest version of the Eternal Mod Injector.
  Windows (Steam): https://gamebanana.com/tools/download/7475
  Linux (Steam): https://github.com/leveste/EternalBasher/releases
  
  
• All players should have the same multiplayer-related mods installed (most addons are client-sided and not every player needs to have them installed). If a player has different or extra mods installed, their game may de-sync and crash. Texture, Model, String, & Audio mods should be unaffected. Everything in the "Overrides" folder must be removed if it exists.
  
  
• A player (the host) should create a private lobby and invite a friend or two (the clients). The host invite players by selecting the Social Menu ( P ) and finding their friend or favorite profiles.
  Some multiplayer mods only require 2 players, the mod author should specify this.
  
  
• Once all players are ready, the host should select a map in the lobby menu to instantly load all players into the map. Alternatively, players may ready-up with mods that require 3 players such BATTLEMODE & INVASION.
  
  
• The host may execute a console command to load into a map for testing purposes. Here is an example of a command to load into a multiplayer map: loadDevMenuOption devmenuoption/pvp 7 1
  This command will load the Torment map from BATTLEMODE.

You can learn more about loading into BATTLEMODE maps here: https://wiki.eternalmods.com/books/eternal-command-console/page/load-battlemode-maps
Multiplayer modding guides: https://wiki.eternalmods.com/books/eternal-multiplayer-modding