Games offered in most casinos are generally called casino games. In a casino game, the players gamble casino chips on different possible random outcomes or combination of outcomes. Casino games are offered in online casinos, where acceptable by law. Casino games can also be played exterior of casinos for entertainment purposes, some on machinery that simulate gambling.

Casino games normally provide an expected long-term benefit to the casino, or "house", while offering the player the chance of a large short-term payout. Some casino games have a ability element, where the player make decisions; such games are known as "random with a tactical element."