Using Kartoffels excellent Cleaned Skyrim SE Textures as a base, all dungeon textures have been up-scaled with an AI upscaler, processed with a custom photoshop filter, and saved in BC7 file format.
100% Lore/Vanilla friendly.
Notes & Permissions
This can be used as is, to either replace dungeon textures, or be used as a base to build on.
These are still Bethesda textures, the quality doesn't even come close to retextures made from scratch. However they are still better than vanilla, and this mod should serve as an excellent base for building textures off of.
This is also a modders resource, feel free to use these textures for anything and everything you want. Permissions are open. Credit is preferable but not required.