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MobyRank MobyScore
Amstrad CPC
Commodore 64
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Your home solar system of 15 planets has been attacked by a horde of Super Dreadnoughts, from a race who wish to harvest your universe's minerals for their own use.

You must pilot your craft through some of the hardest levels ever created and shoot down all the enemy space craft and ground weapons, and avoid the many indestructible hazards.

The innovation is that you do not simply travel in a single direction, but instead move from left to right or right to left depending on where the current targets are, in a manner more similar to Defender than most shoot 'em ups.


Uridium Amstrad CPC All my Mantas are destroyed. Game over.
Uridium DOS "Planes" on "airbase".
Uridium ZX Spectrum Flight and shoot
Uridium DOS In game

Part of the Following Groups

User Reviews

A new direction in shoot'em-ups Commodore 64 Игги Друге (43760)
A defining moment for shoot-em-ups. Commodore 64 RUSSELL HUGHES (9)
Another Great Andrew Braybrook game Commodore 64 Scott G (730)

The Press Says

Zzap! Commodore 64 Mar, 1986 94 out of 100 94
Zzap! (Italy) Commodore 64 Jun, 1986 94 out of 100 94
Happy Computer Commodore 64 1986 92 out of 100 92
GamesCollection Commodore 64 Apr 05, 2008 9 out of 10 90
Computer Gamer ZX Spectrum Feb, 1987 90 out of 100 90
Tilt Atari ST Feb, 1988 5 Stars5 Stars5 Stars5 Stars5 Stars5 Stars 83
ASM (Aktueller Software Markt) Commodore 64 Apr, 1986 8 out of 10 80
Computer Gamer ZX Spectrum Dec, 1986 75 out of 100 75
Official Nintendo Magazine Wii Mar 28, 2008 61 out of 100 61
Nintendo Life Wii Mar 29, 2008 6 Stars6 Stars6 Stars6 Stars6 Stars6 Stars6 Stars6 Stars6 Stars6 Stars 60


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Spectrum joystick issue

Initial copies of the Spectrum version only supported the Kempston joystick protocol, rather than the Sinclair system which was the only one available to users of the then-new +2 models. After complaint from several people who'd bought the game and only been able to play it using the keyboard, Hewson altered the code.


  • Commodore Format
    • January 1992 (Issue 16) - Cf's all time Top Ten Essential Mega Games
  • Happy Computer
    • 1986 - Best Action Game of the Year
    • Issue 04/1987 - #4 Best Game in 1986 (Readers' Vote)

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Contributed to by Quapil (4741), Sciere (257270), Kabushi (122924), Martin Smith (63130), gamewarrior (5065) and Derrick 'Knight' Steele (2154)