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How to Install Mods (Doom Eternal)

Game Update 6.66 rev. 2.2 for DOOM Eternal was released on September 5, 2023. The download links below have been updated to the newest version of the mod-loading tools that support Game Update 6.66-r2.2.

If you are updating from a previous version of EternalModInjector, you must verify/repair the game before installing the new mod-loading tools. If you skipped the verify/repair step and you are having problems, please follow the steps to reset your backups.

Step 1 - Mod-Loader Installation

The DOOM Eternal mod-loading tools are maintained by the DOOM 2016+ Modding Discord. The files you need and the installation instructions depend on what version of the game you have.

If you are unable to access the DOOM 2016+ Modding Discord using the invite link above, you can find the download mirrors below.

Steam version:

If you use the Steam Launcher version on Windows, go to https://gamebanana.com/tools/download/7475 and follow these steps:

  1. Download the EternalModInjector.zip file from the message linked above.
  2. Locate your DOOM Eternal installation directory. Steam version: right-click DOOM Eternal in your Steam library, and choose "Properties..." > "Local Files" > "Browse...". This will open a File Explorer window inside your DOOM Eternal installation folder. Bethesda version:  click on DOOM Eternal's icon in the Bethesda.net launcher, click "Game Options" near the top-right, and choose "Show in Folder".
  3. Extract the contents of this .zip file into your DOOM Eternal installation's root directory, (the one you found in step #2), e.g. C:\Program Files (x86)\Steam\steamapps\common\DOOMEternal\. Overwrite any existing files if prompted.
  4. Verify the files were properly extracted. You should end up with these files in your DOOM Eternal directory. If so, the mod-loading tools are now installed.
-/EternalModInjector.bat
-/EternalModManager.exe
-/EternalModManager.exe.config

-/base/BlangParser.dll
-/base/DEternal_loadMods.exe
-/base/DEternal_patchManifest.exe
-/base/EternalPatcher.def
-/base/EternalPatcher.exe
-/base/EternalPatcher.exe.config
-/base/idRehash.exe
-/base/Newtonsoft.Json.dll
-/base/opusdec.exe
-/base/opusenc.exe
-/base/rs_data
-/base/zlib64.dll

-/Mods/

Microsoft Store (Xbox Game Pass) version:

Read the separate guide at Microsoft Store / Xbox Game Pass (PC)

Important: The instructions for Steam/Bethesda are not the same as for the Microsoft Store version. If you're using the Microsoft Store (Xbox Game Pass) version, follow the instructions at the link above.

Linux version:

The Linux version of the mod-loading tools can be found at https://github.com/leveste/EternalBasher/releases/latest.

Remember to give EternalModInjectorShell.sh executable permission. Most graphical file managers have this option readily visible in their file properties dialog, but you can also open a terminal and run chmod +x EternalModInjectorShell.sh. When following the instructions in the next section, this is the file you will run instead of EternalModInjector.bat.

Step 2 - Playing with Mods

Follow the "Mod-Loader Installation" instructions above if you haven't already.

Once you've installed the mod-loading tools, you can download and install mods as follows:

  1. Download one or more "mod loader"-based mods (they should be saved as .zip archives). You can find mods for download in Discord servers, and on websites like Nexus Mods.
  2. Put the zip archive(s) into the "Mods" folder in your DOOM Eternal installation. (You don't have to extract them, just keep them as zip archives.)
  3. Run EternalModInjector.bat. If this is the first time that you run it, it should tell you some first-time information about what the batch file does, and what to do if something goes wrong with it. Please pay attention while reading it, as the information may come in handy for you at some point.
  4. If this isn't the first time that you run it, it should automatically load mods and launch DOOM Eternal for you without requiring user input.
  5. From now on, simply launch DOOM Eternal as normal (e.g. through Steam or the Bethesda.net Launcher), and it should run with the mods that you last loaded.
  6. If you want to change which mods are/aren't loaded, move mods into/out of the "Mods" folder and run EternalModInjector.bat again.

­Please be wary that you don't enter BattleMode while you have any mods loaded. We take no responsibility for if you get yourself banned from it as a result of using mods.


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