Unfortunately or fortunately depending on your view point it is in fact a game for many of the residents that use it. Those of us providing services dont see it as a game though. There are many games within sl with many people playing them and many people creating/ maintaining them. I realise this is just one sector of sl but it is a big one. There is a vibrant sl/rl porn industry in sl aswell as the huge business environment. All types of simulations exist in sl- cars planes etc etc. Basically the Sl world contains an example of all and every pc game ever invented aswell as it being an experiment lab for anything else, business being a large example.