Flaming Plasma is the name of the rules set I am building to enable me to play skirmish games in my Ornithopter setting. It is based on Song of Blades and Heroes, and has inspiration from several older rules sets. Importantly, I hope for it to be generic enough to be thrown into the ring with the plethora of other generic sets. Oh… the dream.
Anyway, I consider my greatest contribution to the world of rules to be in the tools for designing sessions – mini-campaigns. The format for Flashing Steel seems sound: asking Where, What, Why and Who questions and then fleshing out the details. The trick is to remain generic but still give sufficient flavour. Science fiction is just fantasy, of course, and whatever you say can only eliminate some possibilities, and alienate some readers who saw it differently.
I read a set of rules once that claimed to be generic, allowing you to play with whatever miniatures you had. It then went on to describe the politics and economics of a notional world of the author’s construction. He described the factions and force construction principles. In short, he enabled you to play not anything that you had models for, but anything that HE had models for.
So this is what must be avoided. The goal is to be specific enough for the players to design their forces and decorate the table from the random items, but to be generic enough so that they do not have to share the same art sensibilities as the author.
StarBlazer Adventures may come to the rescue again, as it has already when I was attempting to overcome the problem of shooting at armoured vehicles. There are some great random tables in there. And these are the basic design principles I had in mind: https://shichitenhakki.wordpress.com/rpgs-using-mythic/ornithopter/ Is this too restrictive already? The stuff about no aliens? Should that be relaxed? Probably, or at least the language needs to be modified so the existance of creatures that are not-like-man is definitely possible.