N-Sub (16kB) ROM Download can be obtained free for Sega SG1000 on EmuGames.net only. Play emulator game in English for the USA region. N-Sub is a Sega SG1000 ROM that you can download to your computer or play online within your browser. You can also download roms such as N-Sub and Hugo that work on all devices including desktop and mobile. Be sure to rate the game if you enjoyed playing this ROM.