7DTD is built on Unity Engine and modding is mostly done with XML/XPath and C#. I have yet to install Unity. I have a CLI setup, including a script to disassemble relevant 7DTD assembly DLLs into C# and copy other info from XML files into a directory in my repo.
This "refs" directory has about 800k lines of C# code and 300k lines of XML. Claude can figure out how to add a feature or fix a bug with a few minutes of searching the refs. At first it took 5-10 attempts to get results that actually worked, but now it's often 1-3.
Here are the mods I've released since early Jan:
- SteelUI: fixes for it to work with the latest game version[1]
- Smarter-Tools: a mod I authored from scratch to add a few tweaks to how tools work[2]
- More-Gore-Continued: has serious performance issues I'm working on - making progress[3] (adult only - requires sign-in)
If there's any interest I'm considering writing up all the details in an article and making the mod repos public.
[1]: https://www.nexusmods.com/7daystodie/mods/9386