What's the difference in the software used by various $ US online casinos?

Some casinos have different software – what’s the difference?

Some online casinos are big and clever enough to create their own casino software. However the vast majority of the world’s online casinos are powered by software that is supplied to them by a small list of key software providers.

Playtech, Chartwell and Wagerworks are amongst others, but the biggest two by far are Cryptologic and Microgaming.

As with all of the suppliers, Crypto and Micro offer similar games, but with a slight twist. For example, Microgaming offers more single-player games, whereas Crypto prides itself on the multi-player experience. Each company offers a vast array of slots machines, some of which have the biggest jackpots on the net.