From one of the authors, Paul McCraken, writing at the Stardot forums...
Jon Stuart and I wrote Micromud back in 1984/5. We were only intending to release it on the Commodore 64 as it was the much bigger market at the time. We used the BBC Micro as our development machine with a link to downloaded the code to a C64 development environment for testing.
Thanks to members of Stardot, an early version (v0.71) of the unreleased BBC Micro code, dating from 1985, can be played at the Complete BBC Micro Games Archive.
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