Fees, bank & jackpot
Every part of BurnBola moves along fixed, auditable rails. Two big collections fund everything — a 10% buy-in split and a 10% per-round commission — plus a flat 1% on money leaving the game (exits, resales). All of it is visible on chain.
Collection #1 — the buy-in split (every ticket)
When a ticket enters the game — at sale or mid-game — its price splits three ways:
| Where | Share of the ticket |
|---|---|
| Game bank (the pot) | 90% |
| The game's promoter pool | 9% |
| The lottery | 1% |
The promoter pool is escrowed per game and paid out pro-rata to the people who brought the tickets — the inviter whose link was used, or (for link-less buys) the game's creator in a named game / the lottery in an unnamed one (Promote & earn). The lottery's 1% is unconditional — it stays even if the game is later cancelled (which is why refunds are 99%).
Collection #2 — the round commission (10% of the bank, before every burn)
Before every burn round — including the first — the contract takes 10% of the current bank and splits it:
| Share | Goes to |
|---|---|
| 75% | the jackpot — sealed until the end of the game |
| 10% | the champions tournament pot |
| 5% | the cross-game leaderboard pool (Leaderboard) |
| 10% | the lottery (the house) |
One uniform rule, no exceptions: skim, then burn. The jackpot is therefore born before the first burn — from round 1 there is already a sealed prize that exits can't touch.
Collection #3 — 1% on the way out
A flat 1% fee applies when money leaves the game sideways:
- Exit a ticket → you receive 99% of the exit price, 1% goes to the lottery.
- Sell a ticket P2P in an exit window → the seller receives 99%, 1% to the lottery (the buyer pays exactly the listed price).
- Sell a champion pass on the pass market → seller receives 99%, 1% to the lottery.
- The champions tournament pot pays 1% off the top at the draw.
Winner payouts are sacred: the last ticket standing takes the remaining bank + the whole jackpot with no fee at all. Same for leaderboard prizes and promoter payouts — pushes from the contract, fee-free.
The bank
The bank is the game's main pot: 90% of every ticket that entered. From the moment the game starts it only decreases — by round commissions and by exit payouts (mid-game entries add their fair share back in — see Buying tickets). Whatever remains at the end belongs to the winner. The bank lives in a program-owned vault; no human holds its keys.
The jackpot
The jackpot is the winner's bonus, accumulated from round commissions (75% of each). Its key property: exits can't touch it. Even if a horde of players exits and drains most of the bank, the jackpot stays sealed for whoever survives to the end. The longer the game runs, the more rounds have fed it.
- One ticket survives → it takes remaining bank + the whole jackpot, fee-free.
- Zero tickets survive (everyone exited) → the jackpot isn't lost: 50% seeds the next game's jackpot and 50% goes to the champions tournament pot. Nothing goes to the house in this case.
What the lottery itself earns
The house's whole income is: 1% of every ticket, its 10% slice of round commissions (~1% of the bank per round), the 1% exit/resale/draw fees, and the link-less share of unnamed games' promoter pools (nobody promoted those tickets, so their 9% settles to the lottery — named games' organic flow belongs to their creators). The bank, the jackpot and the winner's payout are untouchable by design. Revenue accrues in a treasury vault whose withdrawal destination is hard-wired in the contract: even the operator key can only send revenue to the one published treasury address.
Worked example — a 100-ticket game
Numbers assume a ticket price of 1 SOL so the percentages read straight off — at any other price, scale everything by the price.
- Sale: 100 × 1 SOL = 100 SOL in. Bank = 90, promoter pool = 9, lottery = 1.
- Before burn 1: commission 9 → jackpot 6.75, champions 0.9, leaderboard 0.45, lottery 0.9. Bank = 81.
- Burn 1 (50 alive). Exit price = 81 ÷ 50 = 1.62 SOL (an exiter receives 1.604 after the 1%).
- Suppose 10 exit (−16.2), window closes: commission 10% of 64.8 → jackpot +4.86… then burn 2, and so on.
- The game finishes → the promoter pool (9 SOL) splits pro-rata among whoever brought the 100 tickets, paid automatically.
- The last ticket standing collects whatever bank survived the exits plus a jackpot that grew before every burn.
The exact trajectory depends on how many players exit when — that's the game. The rails the money rides on never change.