tidal prism
Not sure if mechanics is the right word, but for example, I've seen at least one mod that gave you the ability to double jump, save the jumps and stack as many as you like... Etc.
Note: I don't need this specific mechanic. I'm just using it as an example.
How are people making new things like this? Are there any tutorial videos?
lusty sluice
🫴 modding wiki
night escarpBOT
lusty sluice
there's a page on how to make code mods, read and modify the game's code, etc
long story short; you make a c# code mod
you can use existing code mods as reference (like maddie's helping hand, extended variants, or other mods)
also reminder that you can always ask around in #code_modding