What is SimCity and should I buy it?

If you are interested in that type of game then you should get it. That's dirt cheap. Might as well go for the complete set. What Sim City 2013 started out was a multi player game. Online only. But later from backlash it has a single player mode. What it is about is you build up your city (like a city planner) you have to make decissions of how one building affects another or the area where the little people (agents) live. It's based on strategically figuring out what is best for a particular area etc. Like what types of buildings are needed for the city to thrive. Taxes, services etc. Just like if you were a mayor. In SC2013 this was all done with multiplayers what you put on the map may encroch on someone else's game so there were problems just like in RL of what that could mean to a different part of the map played by different players. It's a strategy game of how to build a thriving city and keep the little 'agents' (fake people) happy. Also, how not to disturb or hurt the economy of another's game. But that's a cheap price if you want to try your hand at city management and building.