Riley’s flagship game is Interstitial: Our Hearts Intertwined. On the surface it is a PbtA game inspired by Kingdom Hearts, but underneath that is some of the most interesting and complex interpersonal mechanics I’ve ever seen.
Interstitial takes the interpersonal mechanics built into a lot of PbtA (Example: History/Hx in Apocalypse World and Bonds in Dungeon World) and pumps them way up. In Interstitial, characters generate “Links” with other PC’s and NPC’s. Links correspond to the four relationship stats: Light, Dark, Mastery, and Heart. Players spend most of the game generating and using these links.
Despite there being mechanics for fighting and questing, it’s really the gamification of relationships that shines. I think this game is representative of some of the wild places PbtA games are going in the future!