One of the major differences between online casinos and land based casinos is that any online casino allows you to play for free. Free casino is played using what most online casinos call play money and it is usually a restricted amount so that you do not blow it all in two or three rounds or spins but you will often find that if you have lost all the play money by logging off and logging back on again you will be able to refresh the amount. Some online casinos will ask you to register an account before playing free casino although a deposit is not normally required but there are others such as All Irish Casino where you can play casino for free without any registration at all. The big question is why do online casinos offer free casino in the first place as it is on the surface of it no benefit to the online casino at all. There is possibly no single answer to this question although the online casinos obviously hope that you will like the entertainment value of free casino and want to add a little spice by risking your own cash and it is of curse true that the excitement and adrenalin flow when playing free casino is nowhere near the level as when risking your own cash. You will also notice that players at free casino are much more reckless then when playing for real money so although you may want to try free poker for example the play will in no way reflect what happens when playing for real money. One big advantage of free casino even for regular users of online casinos is the ability to try out new casino games and this is particularly true of casino slots where new ones are appearing all the time.