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The planet Nonterraqueous is controlled by a master computer. You control a robot seeker drone trying to find and destroy this machine.

You start with a laser and can get bombs but at swap stations you can change form. This new form cannot drop bombs or shoot lasers but it is not harmed by acid drops. You also have psyche stations that can reload you psyche but be careful. If you overload it you will be destroyed.

You don't HAVE to change form for the acid drops. If you're quick and lucky enough, you can just avoid them.

If you touch a proton thruster, an acid drop touches you in your acid vulnerable form, you overload you psyche, your psyche goes to zero or you're too low when you drop a bomb, you die.


Nonterraqueous ZX Spectrum Title screen
Nonterraqueous Commodore 64 Proton thrusters
Nonterraqueous Amstrad CPC This is where I found a bomb
Nonterraqueous Commodore 64 Heavey rain

Promo Images

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Alternate Titles

  • "The Abyss" -- Enterprise title
  • "Nonterraqueous: Not of the Earth or Sea" -- Tag-lined title

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Critic Reviews

Your Spectrum ZX Spectrum Sep, 1985 11 out of 15 73
Zzap! Commodore 64 Apr, 1986 48 out of 100 48


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According to the magazine Retro Gamer (issue #1), the game was Mastertronic's #30 best selling game (121.533 copies).
Contributed to by Kabushi (244697) and LepricahnsGold (139309)