The bankroll is the pool of money that the house uses to pay out winners that bet on the bustabit multiplier.
The max profit that players can win from a round of the game is determined by the size of the bankroll. The larger the bankroll, the more players can win.
Each player can only win 1% of the bankroll in a single round. It's possible to win more in total across multiple rounds, of course!
Similarly, all players combined can only win 1.5% of the bankroll in a single round.
Players can bet on the house (i.e. become bankrollers), and their bet is added to the bankroll such that they win when the house wins and they lose when the house loses.
Having both players and bankrollers (aka house bettors) is important for a healthy bustabit. As bankrolls grow the bankroll base, higher profits will be allowed and bigger gamblers will be attracted to the game.
If you wish to contribute, word of mouth is the most effective way to attract more players and bankrollers. Please recommend the game to your friends.
More information can be found here.