Recently I've been playing a game that Lionel put me on to called Tribal Wars which is very good fun. Basically its a web based strategy game where you build up your village, recruit some thugs, and plunder other villages around you, eventually taking over other villages and growing your empire. To help all this you can also if you wish join a guild and enlist the help/protection of hundreds of other players. The best part of all is the fact that it is set up to play over a very long time.