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SDI: Strategic Defense Initiative

MobyRank MobyScore
SEGA Master System
60
...
Atari ST
...
...
Amstrad CPC
...
...
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Description

SDI: Strategic Defense Initiative is based around classic-style shoot 'em up action. It puts you in control of a satellite which must ensure that the wave of bombs aimed for the United States do not hit. Direction of motion and direction of fire are controlled independently - on the 16-bit versions you rotate the mouse left and right to direct the targeting, move it up and down to increase the range, and use the joystick to move the satellite and thus avoid any contact.

Each level is split into defensive and offensive stages. On defensive levels you must stop each unit as it heads towards the earth, a lá Missile Command. Offensive stages follow the old 'shoot it before it becomes a danger' philosophy, being free-flying shoot 'em up sections among a network of destructible (but worth saving) platforms.

Screenshots

SDI: Strategic Defense Initiative SEGA Master System Getting into the space ship
SDI: Strategic Defense Initiative Atari ST Notice the shot trajectory mid-screen
SDI: Strategic Defense Initiative Atari ST Loading screen
SDI: Strategic Defense Initiative SEGA Master System Defend the planet against missiles

Alternate Titles

  • "SDI - Now The Odds Are Even" -- Spanish title
  • "SDI" -- Official abbreviation
  • "Mobile SDI" -- Mobile Sega Ages title
  • "Global Defense" -- SEGA Master System title

User Reviews

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The Press Says

Génération 4 Atari ST Dec, 1988 77 out of 100 77
Computer and Video Games (CVG) Commodore 64 Sep, 1991 72 out of 100 72
Power Play Atari ST Dec, 1988 71 out of 100 71
Crash! ZX Spectrum Jul, 1991 70 out of 100 70
Amiga Computing Amiga Sep, 1989 64 out of 100 64
Atari ST User Atari ST Feb, 1989 6 out of 10 60
Crash! ZX Spectrum Feb, 1989 59 out of 100 59
GamesCollection SEGA Master System Jan 18, 2008 5.5 out of 10 55
Computer and Video Games (CVG) Commodore 64 Jul, 1991 54 out of 100 54
VideoGame SEGA Master System Mar, 1991 2 Stars2 Stars2 Stars2 Stars2 Stars 40

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Trivia

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Contributed to by chirinea (33100), Martin Smith (63198) and LepricahnsGold (68157)