One balloon for the whole casino. Board with a bet, and the multiplier climbs as it rises — cash out before it pops and you’re paid your bet times the multiplier. Ride it to the pop and the bet’s gone.
Play money only: nothing to buy, no sign-up. The same rules and payouts as below.
Board
Pick your bet and tap Board while it’s boarding (a few seconds between balloons). Everyone in the casino rides the same one.
Cash out
Tap Cash out any time it’s up. The server’s clock decides the multiple: a tap that reaches it after the pop is too late, whatever your screen showed.
Auto cash-out
Set a mark (2×, say) and you’re off exactly there if the balloon reaches it — to the hundredth, however good your connection.
Fair and checkable
Where it pops is fixed before anyone boards: its fingerprint is shown while boarding, and the seed itself at the pop, so anyone can check it. About 2 balloons in 100 pop on the ground.
What every bet pays, and the house edge
The house edge is how much of each bet the casino keeps over the long run — the lower, the better for you.
Bet
Pays
House edge
Off at 1.5× Gets there 66% of the time.
1.5×
1.00%
Off at 2× Gets there 49.5% of the time.
2×
1.00%
Off at 10× Gets there 9.9% of the time.
10×
1.00%
Tips
Wherever you get off, the house keeps 1% — there’s no better mark, only how often you like to win and how big.