Factorissimo adds factory buildings to Factorio. Place them down, walk in, build your factories inside!
Mods introducing new content into the game.
http://lua-api.factorio.com/latest/LuaGameScript.html#LuaGameScript.delete_surface Maybe it'll be useful. I've just found it.
Won't be necessary, since Factorissimo2 can reuse surfaces and uses 100 surfaces at most.
