oh and I'm not sure if it is a good idea to call the free game a 'demo'. It isn't a normal demo with huge limitations. Some of my friends not even tried the game because they thought that, it is 'only' a demo. I had to say them it isn't that kind of demo. I think you should call it zatikon basic or something like that. Or just say that zatikon is a free game and there is an addon for cash(this is the same kind of thing as the free mmorpg-s).