Thunder Castle (1982) (Mattel).int ROM Download can be obtained free for Intellivision on EmuGames.net only. Play emulator game in English for the USA region. Thunder Castle .int is a Intellivision ROM that you can download to your computer or play online within your browser. You can also download roms such as Hydro Thunder and Power Rangers Dino Thunder that work on all devices including desktop and mobile. Be sure to rate the game if you enjoyed playing this ROM.