The virtual casino slots games that are available on countless online casinos are an exact replica of the slot machines that one finds in the brick & mortar casinos. The only difference between the real slot machines and the free virtual slot machines is that they are hosted on a server that can be physically located anywhere in the world.
Also you do not have to visit the exact location where the server lies in order to play such games. In fact you can play the games right from your bedroom.
The free virtual slot machines permit anyone who has got a PC connected to the internet to play different types of slot games. Since there are no financial transactions taking place, one can let their kids play these games as long as they want. Though the adults deny the fact that they too love such machines and state that they are only interested in the paid versions of slots games for free, one can be rest assured that they too play free virtual slot machines from the privacy of their bedroom.