Stake
Create a room, invite people, lock it once everyone's in, and pool whatever you're staking into a real M-of-N multisig address - not a ledger, not an IOU, an actual on-chain address nobody (including this site) can unilaterally spend from.
When it's time to settle, anyone can propose a payout with a stated reason. Everyone (or a configurable majority) has to independently review and sign before anything moves - each participant's browser rebuilds the spending script and the exact transaction itself before signing, rather than trusting a bare hash handed to it.
Works for a poker night, a bar bet, or anything else a group wants to pool money on and settle by agreement.
Live at stake.pynezz.dev (testnet4).