when you download the zip file and unpack it you should see the game folder in there is the game and other stuff in the game folder is a folder named "mods" in there you put the mods then you download the mods unpack them (a mod should be a folder named "sample mod" (for example) if the mod is not in e folder when unpacking put the files of the mod into a new folder (you should name it))then you start the game and the mods should be in the mods menu