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Critic Reviews

MobyRanks are listed below. You can read here for more information about MobyRank.
Sinclair User (Feb, 1989)
Apart from the hideous music, and monotonous blue-on-blue-on-black colour scheme, SDI is a little gem. It may not feature state-of-the-art 3D animated graphics, icon controls or all the other dooflippery, but it's a mega blast and you can't ask better than that, can you punters?
Sinclair User (Jul, 1991)
Not a bad little game and what's there is very enjoyable. I wouldn't fancy its chances with a die-hard shoot 'em up fan though, it's just too easy. If your looking for original game play something like St Dragon meets Missile Command then check this out.
Crash! (Jul, 1991)
[Budget re-release] Graphically SDI is good, the nicely drawn monochrome sprites zip around the screen and you need a keen eye to shoot them. But sadly the gameplay isn't quite up to scratch. Initially fun to play, SDI soon slides down into the dumper because of its repetitive nature.
Your Sinclair (Jul, 1991)
It's sounds like fun, and it is full of nice touches, but the only real snag is that it's all a bit simple, monotonous and dated, even thought it's only 2 years old. Perhaps I'm having a bad month or something, but although this was fun for a while, I'm afraid that even if it asks nicely, I can't give it more than 64%.
Your Sinclair (Mar, 1989)
All this is very straightforward. A simple rejuvenation of the Missile Command game, with a few extra pixels added for old times sake. The lure of extra levels, foes and difficulty creates an incentive for a couple of games, but it lacks that magical programming sparkle to make the attraction last any longer.
The end of the world is nigh! Well, it is unless you and your laser-armed SDI satellite can annihilate all of the enemy missiles streaking towards friendly territory. SDI is a conversion of a startlingly boring Sega coin-op, and this game simply fails to strike home in the entertainment stakes. I can't really recommend this much at all I'm afraid.
Crash! (Feb, 1989)
Mixed opinions here - it's all a matter of taste. But if simplistic shoot 'em ups appeal to you, you'll probably like it
Without the coin-ops gloss the similarity of each level brings very repetitive play with it, especially on the Amstrad and Spectrum.