cRPG is a popular modification for Mount & Blade: Warband. It adds persistent multiplayer character stats, hundreds of unique items, an online campaign, clans, duel ladder, a co-op game mode and a few more things.
Screenshots from the recent Kingdom of Acre siege of the Tasa Clan's Nova Veluca. Attacked by King Reinhardt of Acre but defended by Taser of Tasa Clan. The 5th successful consecutive defense of Nova Veluca by Tasa Clan.