How do I play Z.O.D.?
You don't.  The site you linked to explained they are meant to be used for other games.  There aren't any rules specifically for these pieces.


  We designed these 3d-printable files to be optimized for home printing and cover a wide (and expanding) variety of themes and genres. Whether you use them for RPG dungeon-delves, wargaming scenics, or anything else, these tiles print and assemble fast and easy and come off your build plate ready to paint!