Most of the developers have their severs installed all over the globe and they are connected to each other in such a way that participants can interact with each other irrespective of the corner of the world from where they are participating. The best thing about these plays is that they have artificial intelligence in such a way that any player entering does not leave the arena mainly because there is no opponent online to compete with him. Even though, it is highly impossible to happen, this facility has been designed just to make individual players, who do not wish to compete with any human opponent happy.
Generally, single player games have an end point, which is not applicable to multiplayer models. They are designed in such a way that they can go on and on developing new characters like a real life. Only a few of them have a winning condition that too on the basis of the standings of the gamer after it has been tried out for several times. They can support thousands of gamers online at the same time and due to the wide range of players enjoying them all around the globe and due to the amount of detail added by the developers, they are filled with endless new experiences to the gamers every time they play them. Since some of them permit formation of clans, people can form their own groups and can compete with the other group of players. As every clan tries to perform better than the other clans, the massively multiplayer online games become more challenging.