I recently started playing a game called evony. Now before I get into details, I want to warn you.
1. The game can be addicting!
2. The game is free, but offers the sale of in game cash. There have been some problems with people getting stuck on subscription payments with them, so BE CAREFUL! I have been playing the game just fine w/o spending money, and if you choose to pay, do some research!
3. The game does come up flagged on WEB of Trust, but I have been playing for several weeks and have scanned repeatedly and have no issues.
I don't want you to just click the link and jump in without knowing these things!
Now that that is out of the way, the game is alot of fun! Basically, you start out with a small town, and build!
Inside the walls, you build Housing, Barracks, Academy, and other building that help you train, and do research for your army and city. Outside the walls you build 4 different resource farming buildings to get the supplies to build and train. Once you have built a big enough army, you can expand to the map and move out.
From here you conquer new flats to build more cities, valleys to increase resources, and battle with other lords and their cities.
So if you are interested, head on over to evony and check it out. It doesnt cost anything to try it out, and if you don't like it, you can leave.
I hope to see you on the battlefield, either as friend or foe, and have a great time!