Mount&Blade is a 3D, open-ended, single-player, third- or first-person, computer role-playing game, created and distributed by the Turkish development house TaleWorlds. Mount&Blade has a medieval setting, without any fantasy elements. Mount&Blade is notable for its emphasis on realistic cavalry combat, which was common in the era, but is largely absent in most RPG titles.
its the v.1 (this mod works on M&B v.0.903 and will throw you to build your own castle and army)