World Games ROM Download for Sega Master System (Sega Master) on Emulator Games. Play World Games game that is available in the United States of America (USA) version only on this website. World Games is a Sega Master System emulator game that you can download to your computer or play online within your browser. You can also download free ROMs such as Alex Kidd In Miracle World, California Games and Alex Kidd In Shinobi World as shown below. World Games works on all your devices in high quality.