Well, we almost got a game going tonight. Jeremy, Gino and myself were trying to organize something. Everyone else is busy or AWOL.
Jeremy wanted to run some grimdark fantasy. I didn't feel like that.
I suggested Star Frontiers (Volturnus module stuff). Gino thought that was OK, but Jeremy thinks SF is too silly (a.k.a. not all grimdark like 40k).
Jeremy suggested a Microlite Gamma World style game. Seemed OK to me. Then I realized he meant for me to run it. Um, looked through my old GW files, but nothing was simple and easy. Back then, I was big into running long narrative semi-railroads (I did give them places to stop and get off, or change track, since I'd prepare the next leg after the events of one session - but looking at it now it's all railroady, and long and convoluted).
We ended up not playing (obviously, as I'm typing this now).
I did come away from this with something of value. While digging out old Gamma World stuff, I found a pocket notebook of graph paper with a few small D&D dungeons.
I realized, after the game fell apart, that I need a few small site-based scenarios for Gamma World, Star Frontiers, and other games that we could play as pick-up games. Pre-gen characters, too (or get everyone to post them to our gaming group page for contingency purposes). That way, if we have a night like tonight again, I'll be ready to run a small pick-up game.
Always be prepared.