Did you ever come upwith your own games?

And by that, I mean, that they were purely speculative and never becamepart of our tangible world. I envisioned a fantasy setting I called CastleStorm (ie, "have fun storming the castle!") until I found out a game on Steam had taken the name already. But yeah, it was meant to be a springboard for a novel, a tabletop RPG, or even a full-fledged video game. That never happened though.