There are several companies that provide software for online casino operators. Some smaller casinos will have their own independent software and other very big casinos have their own software that they allow to other operators. The games offered by most of these different programs are very similar.

To run an online casino can be very expensive. The biggest factor for an online casino operator is software costs. Every software must follow certain rules and regulations before the software can be used for gambling purposes in the open market.  There are various "watchdogs" and legislative bodies as thoroughly tests the casino software in use, and then approve it and give it a license to use. The backbone of an online casino's Random Number Generator (RANG). This RANG must be thoroughly if tested by an independent testing panel before it is issued with a certificate. All online casinos should show this certificate for the software they use and distribute to the players.

Setup costs, licensing, secure servers, transaction and payment percentages are a big factor in what makes a popular online casino. That is why many online casinos use the same software under license from one of the major software vendors. Find the software that suits you best and then choose a casino that uses that software from the list. Norwegians often like Intent casinos best since they have Norwegian slot machines were everywhere in Norway.

Some of the major casino software providers are Plastic , Micro gaming , Net Entertainment and Real Time Gaming . These suppliers have more than 50 casino operators each. Each casino operator running the same software will offer the same games and game play experience, but casino operator will set payout percentages, bonus levels, support, languages, payment methods and currencies accepted.