I'm going to speak about the on-line.
I'm going to show you the possitive aspects and the negative aspects of the on-line games.
Negative points: these games create adiction, you need to play one day because you don't notice, that games only play normally people that haven't get a good life: people without friends or deprived people, damage the brain...
Positive points: you go to ``other world´´ of fantasy and this makes you to feel good.
In these games you can make friends but virtual friend, you can do things that you never do in your life.
In coclusion, on-line games have more disadvantages than advantages but it's a succes of your life you can do something that you want; kill, get married, make a shop, met people, make friends...
you can do a lot of thinks but it's bad for your eyes and brain.