It depends on the kind of simulation you want. When I first saw your thread I immediately thought about farm simulation games and of course, the series Harvest moon was the first to come across. Even though I haven't played the latest ones I know the formula and I can tell you that it is a good game in which you become a farmer and you have to breed your animals and get money to keep up expanding your farm. To me it is a must have if you love simulation games.