Critic Score User Score
Amstrad CPC
Commodore 64
ZX Spectrum
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Mankind has spread throughout the solar system into vast colonies, which are under alien threat. The bad guys have anti-matter machines capable of destroying the planets' power source. You must destroy these before they can reach Critical Mass.

Your journey involves travelling primarily to the east, in a hovering craft. It is rotated with left and right movements, and accelerated with forward motion. Laser and shield strength are limited and monitored on screen. Use them wisely, as hostile aliens and mines line the route. Get shot down and you re-emerge with a jet pack, now directed to the bay which can give you a new craft.

The force-field gates near the power planets are guarded by turrets which must be shot down. The mission then boils down the insides of the plant, which must be destroyed before its tractor beam has sucked you into the core.


Power ZX Spectrum Shoot the blob
Power ZX Spectrum This looks like a bureau information display. (before the level report)
Power ZX Spectrum - I did it, I di... (electric sound).<br>
(the wall defences got back)
Power ZX Spectrum Into another dimension where space and time bent together, where no man has ever been... Sprite of the anti-matter plant being amplified.

Alternate Titles

  • "Critical Mass" -- European Title

User Reviews

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Critic Reviews

Crash! ZX Spectrum Dec, 1985 90 out of 100 90
Your Spectrum ZX Spectrum Dec, 1985 9 out of 10 90
Sinclair User ZX Spectrum Dec, 1985 4 Stars4 Stars4 Stars4 Stars4 Stars 80
64'er Commodore 64 May, 1986 11 out of 15 73
Happy Computer Commodore 64 1986 70 out of 100 70


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Contributed to by Martin Smith (63025)