Video Guide

Text & Image Guide

Go to the pages for the required mods, such as LethalCreature Then click on the 'Manual Download' button to acquire the zip files.

Next open up the games base folder where the .exe is located and open up the BepInEx zip

You'll want to make sure to double click on the BepInExPack folder, those are the files you want.

After that select the BepInEx folder and the winhttp and doorstop files
and drag them over into the base folder for the game itself

Likewise, for the other mods you get, if they have the BepInEx folder, you can drag and drop that into the base folder as well and their contents should go right where they belong.