About
A closed-loop play currency.
Crub Bucks (CB) is a way to track bets, chores, and IOUs among friends without anybody ever putting real money in. The whole system sums to zero by construction — for every CB that someone is up, someone else is down. Wallets are allowed to go negative, and the bank is bottomless.
Zero-sum by construction
Every economic event is a transfer: one wallet's balance goes down, another's goes up,
by the same amount, in one database transaction. Balances are never stored — they're
derived by summing the ledger — so they cannot drift. Cumulative bugs in the math are
impossible.
One wallet, your friends
Send a friend request by email; once they approve, you're connected (and either of you
can unfriend later). Your single CB balance follows you everywhere. New players get a
100 CB welcome grant from the Bank on first login — the Bank just goes that much more
negative, keeping the books at zero.
A public feed
Like Venmo, there's a shared feed: who started a bet, who won (team games can have
several winners), and who paid whom. Everyone signed in can follow along.
Bets, made flexible
No groups to set up — a bet is the grouping. You make a bet, add some friends
(you're always in it too), and declare each person's potential payout (if they win) and
loss (if they lose) — they don't have to be 1:1. Resolve it whenever the result is in;
the ledger moves CB from losers to winners. Payouts and losses must balance, or we
refuse to settle.
No real money
Crub Bucks have no real-world value. Don't try to send people USD via the app, don't
try to redeem CB for anything tangible, and please don't get any of your friends
arrested over a poker debt.
Ready to play?
It takes about a minute to set up.