DOOM Eternal Official Mod Support Details

Official idStudio Guides: https://idstudio.idsoftware.com/

New Tools for Modding

The Doom Mod Portal has been added to Steam in a beta branch.

• Access by right clicking DOOM Eternal in your Steam library -> Properties... -> Betas -> Beta Participation -> pc-mod-preview
• This is a browser and publishing tool for mods. Be sure to define where you want your Mods to be located in the Settings.
• Multiplayer is disabled because it is not ready yet.

idStudio has been added to Steam.

• Download here: https://store.steampowered.com/app/2545650/DOOM_Eternal_idStudio/
• This is the environment modders will use to create and test their mods.
• This tool is currently in beta and will receive updates in the future.

What we CAN do with idStudio

• Modify or create new decls
• Modify or create new textures
• Modify or create new static or animated models
• Modify or create new animations
• Modify or create new strings
• Modify sound effects & music
• Build your own maps with new geo, nav, entities, etc
• Modify vanilla map geo, nav, entities, etc (need asset packs)
  

What we CANNOT do with idStudio (yet)

• Modify DLC or BATTLEMODE maps since their asset packs are not available yet
• Modify the UI or HUD more than what was previously possible
• Create new sound effects or music
• Test multiplayer with more than 1 player
  

Some Drawbacks with idStudio

• idStudio itself is ~100 GBytes
• Optional map asset packs are 10-20 GBytes
• You will need to login to your Bethesda account to access/publish mods
• You need a fairly powerful PC to run idStudio well (32 GBytes of RAM is recommended)
• idStudio may take a some time to do the following
   - Boot up
   - Open a map
   - Load into a map
   - Package a .map file (packaging decls, strings, textures, & audio will only take a few seconds)
• Packaged map files are roughly 700 MB in size per unique map