Conan building makes Ark look like a joke. Minecraft building only makes the list because of mods, and yet Scrap Mechanic isn't this list when it has better mechanics to it right out of the box... Empyrion may not be well known or overly popular, and yet I find the way building in that game works would fit into a list like this rather than having repetitious building styles mentioned. You get to build using a drone even!
