Online casinos or virtual casinos as they are also known are online versions of "regular (land based)" casinos. These allow a user to play and bet on games throughout the Internet. Many of these casinos offer payback percentages that can be the exact same as that of the regular ones. However, there are some that guarantee a greater payback percentage than that of regular casinos, especially with quality casino online slots. Some of these casinos also publish their payout audits on their own web sites establishing their credibility. The sheer convenience of playing form anywhere makes these casinos attractive to many.

There is the issue of reliability in terms of online casinos everywhere. Many of these online casinos purchase their software from reputed companies to establish credibility among its players as well as in the market. Many of these reputed software companies use random number generators to ensure that the dice roll randomly as well as the numbers are also in random.