Some casino games have a skill element, where the player makes decisions; such games are called "random with a tactical element". While it is possible through skillful play to minimize the house advantage, it is extremely rare that a. Games available in most casinos are commonly called casino games. In a casino game, the players gamble casino chips on various possible random outcomes or combinations of outcomes. Casino games are available in online casinos, where permitted by law. Such a skill set would involve years of training, an extraordinary memory and numeracy, and/or acute visual or even aural observation, as in the case of wheel clocking in roulette. The player's disadvantage is a result of the casino. Keno and simulated racing. Gaming machines, such as slot machines and pachinko, are usually played by one player at a time and do not require the involvement of casino employees to play. Random number games are based upon the. Therefore, the house edge is 5.26. After 10 spins, betting 1 unit per spin, the average house profit will be 10 x 1 x 5.26 0.53 units. Of course, the casino may not win exactly 53 cents of a. However, the casino may only pay 4 times the amount wagered for a winning wager. The house edge or vigorish is defined as the casino profit expressed as the percentage of the player's original bet. (In games such as. European and French roulette wheels have only one "zero" and therefore the house advantage (ignoring the en prison rule) is equal to 1/37 2.7. 1 Poker has become one of the most popular games played in the casino. It is a game of skill and the only game where the players are competing against each other and not the house. There are several variations of poker that are played in casino card rooms. The house edge of. The set of the optimal plays for all possible hands is known as " basic strategy " and is highly dependent on the specific rules and even the number of decks used. Good blackjack and Spanish 21 games have. Casino games can also be played outside of casinos for entertainment purposes, some on machines that simulate gambling. Contents, categories edit, there are three general categories of casino games: table games, electronic gaming machines, and random number ticket games.