Callisto Computers Started by Mike Woodroffe, based in Birmingham. He imported the various Scott Adams games from Adventure International for Apple II and Atari 400/800 and later Commodore 64 disk. At the time, the popular computers in Britain were ZX80 and ZX81 and the games scarcely caused a ripple in the market. Then came the VIC-20 (and the imported Scott Adams cartridges) and a whole host of new systems. Tape based Commodore 64s and Spectrums literally created a mass market of what was previously a specialist arena. For more information, see Adventure Soft UK.

Adventureland was created by Hans Persson and is now maintained by Stefan Meier.

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