SDI: Strategic Defense Initiative

Critic Score User Score
Amstrad CPC
...
0.6
ZX Spectrum
64
0.6
Atari ST
72
...
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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 Arcade Title Screen.
SDI: Strategic Defense Initiative Atari ST Title screen
SDI: Strategic Defense Initiative Arcade Onto the next part.
SDI: Strategic Defense Initiative ZX Spectrum In the midst of the action

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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Critic Reviews

neXGam SEGA Master System Feb 02, 2010 8.6 out of 10 86
Power Play SEGA Master System Apr, 1988 6.5 out of 10 65
Commodore Format Commodore 64 Jun, 1991 64 out of 100 64
Your Sinclair ZX Spectrum Jul, 1991 64 out of 100 64
The Video Game Critic SEGA Master System Nov 14, 2000 C+ 58
The Games Machine (UK) Amiga Sep, 1989 57 out of 100 57
The Games Machine (UK) Commodore 64 May, 1989 56 out of 100 56
The Games Machine (UK) Atari ST Jan, 1989 56 out of 100 56
GamesCollection SEGA Master System Jan 18, 2008 5.5 out of 10 55
Game Freaks 365 SEGA Master System 2000 3.5 out of 10 35

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Contributed to by chirinea (36060), Martin Smith (63024) and LepricahnsGold (109259)