Casino games involve playing against the house, like spinning the roulette...

https://star-wiki.win/index.php/What_Word_Should_I_Use_If_I_Mean_%E2%80%98Risking_Money_on_an_Uncertain_Outcome%E2%80%99%3F

Casino games involve playing against the house, like spinning the roulette wheel for a chance to win. Gambling covers any activity risking money on uncertain outcomes, including lotteries or slot machines