SDI: Strategic Defense Initiative, or simply titled SDI and sometimes known as Global Defense. Players control a satellite and must destroy enemies by moving a crosshair over them and firing the satellite's weapons.
SDI: Strategic Defense Initiative, or simply titled SDI and sometimes known as Global Defense. Players control a satellite and must destroy enemies by moving a crosshair over them and firing the satellite's weapons.
ActionScience fiction
Game modes: Single player, Multiplayer
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Quick answers
When was SDI released?
SDI released on April 1, 1987, developed by Sega Enterprises, Ltd. and published by Activision, Sega Enterprises, Ltd..
What platforms is SDI available on?
SDI is available on Arcade, Commodore C64/128/MAX, ZX Spectrum, Atari ST/STE, Amiga, Amstrad CPC, Sega Master System/Mark III. It supports single player, multiplayer.