Edge writes: "This is part four of our genre-oriented look at the games market in the near future. For our reasoning and methodology behind this series, please check out the first entry on shooters. Part two on action adventures and part three on RPGs are also available. Today it's all about so called "casual" games-that's certainly a misnomer for a broad swath of games, yet it's still recognized as encapsulating puzzle games, certain types of simulations, whatever Nintendo is doing at any given time, and clones of whatever Nintendo is doing at any given time. The primary characteristic each of these products share is that they are all appealing to the non-traditional gaming demographic, so let's call them "mass market" instead."