Lowest price at the mo' .There was an amazon seller at £11 but theyve now upped their price to around £18.....
Warband is a standalone game with upto 64 multiplayer and also a single player campaign.
Played the original Mount & Blade to death.
Heres a bit of devs blurb....
In a land torn asunder by incessant warfare, it is time to assemble your own band of hardened warriors and enter the fray. Lead your men into battle, expand your realm, and claim the ultimate prize: the throne of Calradia.
In a genre all its own, come experience The one and only Medieval combat /kingdom building sandbox game.
Mount and Blade Warband is a unique blend of intense strategic fighting, real time army command, and deep kingdom management. You can get more info at Taleworlds site http://www.taleworlds.com/main.aspx