I'm designing a few "campaign frames" for Inept Sorcerers, which provide the game with a more concrete tone and setting.
On the heels of Inept Sorcerers and It Was There, Honest!, I thought I'd take a shot at writing a general-purpose adventure roleplaying game, using the things that resonated most with readers of those games.
I decided to go with the five-rooms approach, to give the game some structure. Based on that, I broke down the five areas, wrote descriptions for each one, and wrote three questions that the AF should try to ask as the kids narrate.
I've occasionally thought about resurrecting Villains Victorious! or otherwise publishing it in a collected format. My reservations there are practical - to put out a high-quality PDF of the material, I'd want appropriately four-color art.
Similarly, I've got a decently polished sci-fi concept (Song of Eden) and the start of some unconventional urban fantasy (Fairy Soul). I have enough ideas that I could assemble a fantasy universe, but that would take more time.