This guide covers the basics of modding in Subnautica 2 and how people are doing it so far:
Currently, Subnautica 2 does not have official modding tools or support, but as it's an Unreal Engine game, there are plenty of community-created tools which make modding possible!
The Basics - Useful Guides
If you're jumping into modding Unreal Engine games for the first time, you should read these incredible community guides that teach the basics and fundamentals of making UE mods.
Tutorial Link: https://github.com/Dmgvol/UE_Modding/
Make sure you've downloaded both Unreal Engine and FModel, as these are two crucial software programs you will need to begin your modding journey.
Tools & Software to Use
UE4SS - A community-created framework that allows you to create powerful scripts, load blueprints, and generally make more advanced mods for UE games.
- UE4SS Documentation: https://docs.ue4ss.com/
- Download UE4SS for Subnautica 2: UE4SS for Subnautica 2
FModel - A tool that allows you to datamine Unreal Engine games and view assets with ease.
- FModel website: https://fmodel.app/
For more suggestions, you should visit this GitHub page for a list of community-created resources for modding Unreal Engine games.