This paper is a draft, but I think it has significant issues to address. I have played both Sim City and flight simulators and would have to say that these are the most non-standard 'computer games' out there. They certainly do not resemble 'most off the shelf' commercial games, and they differ precisely in that they do not have any specific game objectives. To cit them, and to then leap directly to the other extreme, Thiagi's low-tech games, is to be misleading about the potential of games. What about games with variable objectives and mod-packs, like Civilization or even Lego Mindstorms?