A while ago I found (and reposted) the rules for Spellbinder aka Waving Hands (aka lots of other names). The ruleset I posted did give credit to the author, but now I can link to his page on the game. The net’s a groovy place. In any case, it’s a cute little game and his page links to various computer implementation. I remember Andrew Plotkin’s version at CMU, which certainly got a lot of play and is apparently now part of the Debian distribution.