Annulus

bounty board- fetch thing, kill thing, escort thing, etc. procedural generation? grant Dosh rewards upon completion? might overlap somewhat with Agency's rumors list. alternately- after completing an adventure that directly benefits base, gain Dosh equal to base's Economy rating. Straight up port Agency's rumors list here, it's gone there.

legendarium- custom dungeons! players specify a treasure type, what kind of place it's in, what's guarding it. referee makes a dungeon based on these suggestions, but has a chance to alter some of the details to keep it interesting. fluff-wise, the adventurers are researching the dungeon or hearing stories about it from a bard or something, so some information is bound to be inaccurate.

trophy room- not sure. bonus XP for bringing back unique mementos of past adventures? could be neat. No- turn treasures collected during current session into XP instead of Dosh. More valuable treasures have higher chance to succeed.

life insurance from financier, maybe. feels more like an establishment than an ability.

altventuring: send an alt character out during a session, die roll grants rewards/consequences (XP based on alt's adventurer tier)