The mod list, in the main menu. At the bottom left.

What does "right-click the mod in this list" mean exactly? What "list" are you referring to?

Just copy those two files somewhere in the bin folder, right?

Because bepinex supports coreclr which is what cosmoteer uses under the hood.

@oktakon BepInEx is a widely known unity DLL Hook that can load mods in games that don't support them

that said....isn't this game a custom...engine?? Why is BepInEx here...?

and this mod is for what exactly ?