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ZEDRAGON is a version of the classic game 'Sea Dragon' for a suitably expanded Sinclair ZX81.

It is based on the Atari version by Russ Wetmore. Russ kindly released the source and graphics assets into the public domain and, being a huge fan of the game, I just had to make a version.

The standard ZX81 just isn't going to cut it though. 64 x 48 pixels can't resolve much, this game deserves more than blocky graphics and silence. Combine that with a map that clocks in at just under 6K before you start adding code and you can see that a fairly radical solution is needed.

Some hardware help is required. ZXpand+ provides the RAM, sound and joystick interface. Andy Rea's superb UDG board provides the rest. I realise this is going to mean most ZX81 users won't be able to experience the game first hand but there is always EightyOne..!