Yeah about that. It does give me a headache when making the binary game mechanic. Somehow it doesn't work for sci fi version of it. I might ditch rules that though. Happy you liked it!
Interesting because I was thinking of making a science fantasy hack of this... Why doesn't it work for SF?
when I ran the vehicle combat I ran out of luck for a character who doesn't have vehicle as a skill and that sucks! For Starzard I ditch skill though. You're welcome to create a sci fi hack of spellzard.