I feel like Doomed Pilgrim works with an audience and varying participation in a Public space. I’m thinking a more private and direct channel, probably played asymmetrically, probably with a set player or players.

External document reference and some kind of shared randomizer would be fine, possibly not necessary.

I feel like it’s a pretty practical space to pick up and play for a while, then drop it as necessary. Continuity seems fraught. I’m thinking about Storium stories folks have told me, where the challenge isn’t running the game but keeping it going.