Steel Works Zone is the tenth zone of Super Sonic Doom.
Act 1 Begins in a tunnel that leads out into a big room with train wagons. On the other side of the room, the big construction area. There are many hazards here. Hell Knights and Barons of Hell are the Bosses, you can shoot them with the Anti-Craft Guns. The Music for this Act is "Lava Reef Zone Act 1", Sonic 3 & Knuckles.
Act 2 Starts in a big room with crystals, a trench in the middle of the room and houses. Hardly any Beastliness! This is a sight you don't see very often in a Doom game. At the end of this level, Vanity reappears (although he only has half of his health) and Damage kills him. Just after that fight, the Firestarter himself takes control of a target boss where the player has to avoid tripping into lava. After Damage destroys the machine (but not the Firestarter), he goes through a teleporter that requires him to take off his weapons and armor. The Music for this Act is "Lava Reef Zone Act 2" A.K.A. "Hidden Palace Zone", Sonic 3 & Knuckles.