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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, shoot down enemy space craft and ground weapons, and avoid the many indestructible hazards. When a sufficient number of enemies have been defeated the player can then land on the Dreadnought and proceed to destroy the ship's reactor.

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 DOS Mindscape logo (CGA)
Uridium Amstrad CPC Starting out
Uridium Amstrad CPC All my Mantas are destroyed. Game over.
Uridium DOS In space

Promo Images

There are no promo images for this game

Part of the Following Groups

User Reviews

A new direction in shoot'em-ups Commodore 64 Игги Друге (46314)
A defining moment for shoot-em-ups. Commodore 64 RUSSELL HUGHES (9)
Another Great Andrew Braybrook game Commodore 64 Scott G (793)

Critic Reviews

GamesCollection Commodore 64 Apr 05, 2008 9 out of 10 90
Computer and Video Games (CVG) ZX Spectrum Dec, 1986 9 out of 10 90
Your Sinclair ZX Spectrum Dec, 1986 9 out of 10 90 (UK) Wii Mar 28, 2008 9 out of 10 90
Tilt Atari ST Feb, 1988 5 Stars5 Stars5 Stars5 Stars5 Stars5 Stars 83
Your Commodore Commodore 64 Apr, 1986 33 out of 40 82
Your Sinclair ZX Spectrum Nov, 1988 8 out of 10 80 (UK) Commodore 64 Jul 04, 2007 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


Topic # Posts Last Post
MSX Version 5 Alaka (86465)
Oct 20, 2021



Robert Orchard believed that there was an element called Uridium when he named the game - it is thought that he had heard a mispronounciation of the real element Iridum. The game's title was seemingly later referenced by Star Trek: Deep Space Nine, in which it is a volatile element used by the Cardassians in spaceship construction. 'Uridium' has also been incorrectly given as an answer on the British TV gameshow Pointless, in which obscure (but correct) answers are required, on rounds requiring the name of a chemical element that fits certain criteria (such as beginning with a vowel or ending 'ium')

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
    • July 1991 (Issue 10) - listed in the A to Z of Classic Games article (Great)
    • January 1992 (Issue 16) - Cf's all time Top Ten Essential Mega Games
    • November 1994 (Issue 50) – #46 The All-Time Top 50 C64 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 (5475), Sciere (779803), Kabushi (257593), Martin Smith (78683), gamewarrior (5042) and Derrick 'Knight' Steele (2415)
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