Online casino is a derivation of the land-based traditional casino, also known as virtual casinos or gambling sites and providing diverse games or a single one depending on the website operation, franchise, etc. The online casino offers generally better odds than land-based casinos for games such as slot machines where the chances of winning are regulated by the house, the so-called house advantage.
On August 18, 1995 the world's first online casino debuted, Internet Casinos, Inc. (ICI) operating with 18 different casino games and for the first time offering also online access to the National Indian Lottery. However, since the early days ICI operates out of the Turks and Caicos Islands, outside the United States to avoid government prosecution.
Also, in the mid 90's, two other online casino's made their debut claiming to be the first; The Gaming Club and Intertops casino and sports book, which in fact launched the first online sports book before Internet Casinos, Inc.. Building a reputable service with reliable payouts, high security, efficient customer support, and serving a large number of customers excited with this new gambling modality, the online casino succeeded.