User Reviews

There are no reviews for this game.

Our Users Say

Category Description User Score
Gameplay How well the game mechanics work (player controls, game action, interface, etc.) 2.2
Graphics The quality of the art, or the quality/speed of the drawing routines 2.2
Personal Slant How much you personally like the game, regardless of other attributes 2.8
Sound / Music The quality of the sound effects and/or music composition 2.2
Story / Presentation The main creative ideas in the game and how well they're executed 2.2
Overall User Score (5 votes) 2.3

Critic Reviews

MobyRanks are listed below. You can read here for more information about MobyRank.
It's all a bit like an updated version of Missile Command, and while it's not particularly addictive or attractive to look at it's a fair buy for four quid.
Commodore Format (Jun, 1991)
It's a jolly little blast with fairly good graphics and sounds. It makes a good first impression but I can't see interest lasting.
The Commodore version fares a lot better, with neat backdrops helping to boost gameplay. Without the coin-ops gloss the similarity of each level brings very repetitive play with it, especially on the Amstrad and Spectrum.
A conversion of the mediocre Sega coin-op. Planetary defence is the name of the game as you fire your laser satellite at the marauding nuclear warheads. SDI is a simple game that was average on all counts when it was first released for £9.99. There are much better budget arcade conversions available for the C64, so keep well away from this effort.
Commodore Force (Aug, 1993)
I find it tedious, dull and naff. At no point during play, does the shoot-em-up action of SDI rise above mediocre. I never realised nuclear war could be so yawn-inducing (sigh).