From the Publisher website:
Matt Lyon takes you to the very depths of Hell with WorldWorksGames “HellWorks”. Fire and brimstone dominate this model set with a demented landscape of pain and suffering. Packed full of unique ground tiles, modular cliffs and props, the world you design will take your players to chaos demon realms and the Chthulian explorations of your darkest nightmares! Almost any game genre or type can enjoy our Hellish vista. Hell, maybe it’s not even “Hell”, perhaps this represents an apocalyptic valley of death or an alien battlezone! However you decide to implement HellWorks in your next game you’ll be happy to note that it works with all of our other modelsets for the ultimate mix-and-match utility. Not only that but it comes in zero-grid, 1-inch, 1.5-inch AND hex formats for the ultimate compatibility with your game system.