Lately I've been addicted to Dwarf Fortress. If you've never heard of Dwarf Fortress and you consider yourself a pc gamer you should at least check it out. It's a very immersive and extremely complicated game. It's a game that focuses on great programming, immersion, and game-play as oppose to graphics. Any true gamer will realize that graphics are irrelevant if the game isn't fun. This game has complete skeletal and muscular system, this mean that when your dwarves are in combat many interesting and often quite amusing things can happen. For instance your dwarf could break every bone in his hand while punching in the skull of an enemy goblin, the fact that the game can keep track of every wound and appendage is quite impressive. Groups dynamics and psychology come into play as well, you have to meet your dwarves basic needs. Such as hunger, thirst and the need for shelter. Anyone familiar with Maslow's hierarchy of needs will be familiar with this. Once your dwarves have their basic needs met they'll engage in many other social activities and interactions. Such as establishing relationships whether it be a friend or lover, they'll even have grudges against other dwarves in your fortress and will prefer not to talk to them. They can suffer from depression from the lost of a friend or lover one. They can even become sad if their environment is dull or they have to eat the same boring food everyday. As you can see the game has some very complicated systems at play, yet still manages to be fun. I've yet to even scratch the surface of how complicated and amazing this game is.