From publisher blurb: Explorer: Lava Cave System is a set of printable battlemaps compatible with any RPG/Dungeon-Crawl game. Explorer: Lava Cave System is a standalone set, comprising five 30x30 battlemaps. Each tile depicts a different and unique lava-filled cavern. Whilst each tile works perfectly well on its own, they can also be joined together (in sequence) to make a long network of volcanic tunnels and caves. Please Note: These maps are not geomorphic, but can seamlessly join together in a line (Maps 1,2,3,4,5 )