Proteus (1984)(Ultrasoft)(de) ROM Download can be obtained free for ZX Spectrum on EmuGames.net only. Play emulator game in English for the USA region. Proteus is a ZX Spectrum ROM that you can download to your computer or play online within your browser. You can also download roms such as Disney Collection Castle Of Illusion & Quackshot and Fighter Bomber .dsk that work on all devices including desktop and mobile. Be sure to rate the game if you enjoyed playing this ROM.