Medieval 2 total war is the newest stratagy game from creative assembly and it is pretty damn fun!
In medieval 2's grand campaign at first you can choose from around 5 different factions to play as at first but as you continue to play the game you will unlock 12 other factions of which you can play as.
Historic events in the grand campaign happen pretty much in real time, at the same time they happend in the real world.
But it does not stop there, all of the action happens in fully 3D battles, and thats were the graphics engine works at it's fullest, but the way you fight those battles is simulated as what would happen in real life so different factors that effect your troups on the battlefeild include moral, and the character leading the battle.
Navel battles unfortenetly don't work on a battle feild which would've been much fun to fight but dispite that, this game is a fun, good looking game that you should get if you can afford it.