The casino software in use at your chosen online casino will determine how much you enjoy the experience as it is the software which controls the graphics and even the choice of casino games that are available. This also explains why there are several online casinos that seem to have the same casino games as others. The casino software business is in the hands of only a handful of specialist companies and in no particular order they are Microgaming, NetEnt, Playtech, Chartwell and Wagerworks and the online casinos will usually select one or the other although there have been occasions when an online casino has selected one casino software for the casino slots section but another for other casino games such as roulette or blackjack. The fact that the casino software controls the slots is particularly interesting as the very large progressive jackpots are contributed to by all online casinos that use that particular software. You may also have noticed that an online casino is delighted when one of its players hits a large jackpot when you might have expected them to be out of pocket and therefore unhappy. The truth is that the very large jackpots are accrued by a very small take from every spin on the slots which are part of that jackpot regardless of which online casino it is. The casino software provider keeps the take and releases it when the jackpot is won so in fact the online casino is not out of pocket at all so it is simply good publicity for them when a player wins. All the casino software providers offer different casino games and whether one is better than another is a question of personal choice; at casinos.ie they like NetEnt which you can find at All Irish Casino and No Bonus Casino as especially the slots offering is a little bit different.