I can't stop thinking, which means I make a lot of up and then jot them down for others to read and tinker with too. That takes us from mind opening fiction to role playing games and occasional jaunts into technology or cybersecurity, two of my other passions.
My current series is a planned 8-book run in the cosmos of the Eschatos Diagram. Beyond being just a good story, the series has the chops for a card + role playing, both of which I'm contemplating.
Hint: If you are looking for RPG stuff, jump to the Arduin section. It contains all things RPG, which mostly revolves around Arduin, but includes other RPGs as well.