Online casino games can be played in two different ways.

  • These are software based online casino games. The results of the games are determined by a pseudorandom number generator (PRNG) software rather than actual deals as in traditional casinos. This software makes the outcome of each game completely unpredictable and random. This involves the deal of a card, spins of a slot machine, spins of a roulette wheel and the throw of a dice. The generator makes use of an algorithm to generate a long range of numbers that gives the feeling of randomness. Although the generation is quite different from true generation, the results the PRNG software provides are actually good enough to qualify for high requirements of randomness. A PRNG software must be transparent and truly unpredictable for players to trust the reliability of the casino games.
  • Live dealer. These are totally different from software dependent games. The deal of a card, spins of a slot machine, spins of a roulette wheel and the throw of a dice are not predicted by software but are actually based on real time actions. These games include a live chat. The players are able to communicate with the dealer. The dealer passes the real time results to the players. The players are, however, given the feel of a virtual game. The results are translated into data that can be used by software by means of optical character recognition (OCR) technology. These games are pretty expensive to run.

General classes of online casino games

  • Gaming machines.These are games generally played by one player at a time and do not require casino employees to play. Examples include casino slot games, pachinko, video lottery terminal and video poker.
  • Table games. These games involve one or more players competing against the casino instead of against each other. These games require a casino employee known as croupier. Examples include baccarat, craps, blackjack, roulette, poker and big six wheel.
  • Random number games. The random selection of numbers is generated by an automated number generator or gaming equipment. Examples include bingo and keno.


An external regulator is sometimes required to audit virtual games. The regulator ensures the randomness of the game is high enough to ensure win percentages are fair. The cost of running a live dealer game is way expensive than running a virtual game. This is why the numbers of games offered in live dealer games are few while a casino can host hundreds of virtual due to the low cost. The most common games like baccarat, sic bo, blackjack and roulette are played on live dealer games.

There are times when a casino game combines multiple classes. Roulette, for instance, is a game conducted by a croupier and also involves random numbers. Poker games generally played against the casino can be played against other players during tournaments. Random number games can be played at a table or through the purchase of tickets.

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