This is a supplement for the 1991 role-playing game (RPG) Thundering Steel. It adds over 200 new small arms to the game (including vintage weapons, heavy weapons, civilian weapons, and bolt-action), new ammunition types, adds anti-tank/anti-material rifles to the game, cone weapons, rifle-launched/under-barrel/automatic grenade launchers, new anti-tank missiles, new mortars, artillery/anti-aircraft guns of World War One, flak guns, key World War Two tank guns, even more personal gear, and Rustsatze kits for quickly adding weapon kits to vehicles.