Clarence Redd debuted his Frostbyte Books a few years ago with M-Space, a stripped-down science fiction rules set based on Mythras. I suspect that M-Space is pretty good, though due to a certain necessary blandness, it never quite clicked with me - I was never sure why I should choose it over something more flavourful like Traveller or Frontier Space.
However, M-Space brought an interesting innovation to Mythras and d-100 gaming in general: Its own extended conflict mechanism, which basically consists of a series of opposed rolls, where the winner deals damage to the loser's conflict pool (the conflict pool being based on one or two of the core characteristics).
