what happens when you win a jackpot at a casino. Get that James Bond feeling, order a drink from our skilled bar tenders and cast an eye over the Casino. Hit the jackpot at our spacious bar in Le Grand Casino. slot machine jackpot payout. . what happens when you win a jackpot at a casino. [HOST] › cruises › ships › msc-virtuosa. Casinos make money off of winners, either because they come back later and (eventually) lose the money they won, or because they convince others. Casinos make money off of winners, either because they come back later and (eventually) lose the money they won, or because they convince others.