All of the casinos are open 24 hours (except Big Cypress) and all offer bingo except for both Seminole Hard Rock Casinos and the Seminole Casino Coconut Creek. Random number generators edit All modern machines are designed using pseudo randomnumber generators prngs which are constantly generating a sequence of simulated random numbers, at a rate of hundreds or perhaps thousands per second. Since all casino games have a house edge, the wagering requirements ensure that the player cannot simply walk away with the casino's money immediately after claiming the bonus. The commission is 50 for 3-50 bets and 1 for bets over. The most commonly reported behaviour is a refusal to pay withdrawals to legitimate winners. "From the Back Office, a Casino Can Change the Slot Machine in Seconds". No public information is available concerning the payback percentages on gaming machines at Indian casinos. In addition, slight variations of each machine (e.g., with double jackpots or five times play ) are always being developed. It is important that the machine contains a high-quality RNG implementation, because all prngs must eventually repeat their number sequence, 24 and if the period is short, or the prng is otherwise flawed, an advanced player may be able to 'predict' the next result. "Rapid Onset of Pathological Gambling in Machine Gamblers: A Replication". According to their law, operators licensed on the territory of these countries can only be considered legal. Citation needed Psychologists Robert Breen and Marc Zimmerman 48 49 found that players of video slot machines reach a debilitating level of involvement with gambling three times as rapidly as those who play traditional casino games, even if they have gambled regularly on other forms.