This is an interesting concept! I'd love to hear this with music (I'd be happy to compose a temporary looping track for you if you'd like), I like the UI and idea for having a set group of adventurers with timers coming in and out. Maybe for game appeal, having a small visual or audio effect reinforcing successful behavior? Or a narrative line/text blurb that describes your actions/the adventurer's reaction? It reminds me of Papers, Please or other "Store-run" games for inspiration
An impressively ambitious project for a game jam, would be so interested in seeing if this develops further. Cheers!