Online casinos or the internet casino offers a wide range of offers that are basically odd and payback percentages which are comparable with traditional casinos. There are mainly web based casinos, downloadable casinos and live casinos. Web based casinos are those which do not require downloading a game rather some plug-in are needed to be installed before playing the game on theses online casino sites. The type of game the gambler wants to play is solely his decision but only thing that gambler has to remember that he has to follow all the rules and regulations pertaining to the game. Without these plug-in the game cannot be opened. This plug-ins normally comprises of macromedia flash player, macromedia shockwave or java. These are most important and common plug-ins which is required to be installed in all online casino websites. The gambler is required to play games on the website only. They are not required to download these games. The second type of casino is the download based online casinos. In these online casinos the gambler is required to download the game before playing. They are supposed to download the software before betting. The basic difference between both the web based online casino and the download based casinos is that the games of second type casino runs faster that the web based games. This is due to the fact that the websites server becomes busy or may even broke down due to some error or loads. While the functionality of the download based online casino entirely depends on the client’s server and graphics being installed on the computer. Yet still there is a risk of virus while downloading any type of game from such site. Always look for the site which has high reliability that it may not harm your computer through virus when installing the software. Another most important and interesting type of online casino is live based casinos. This type is popular among the masses all over the world. The biggest part of this type of site is that the gamblers from all over the world can connect with other, they can see each other, chat , share there thoughts, have discussions in group at one destination that is the online casinos. Thus it can be right to say that they play in real world environment. For all such type of casinos you have to first sign up with these sites before playing.