This mod aims to turn Calradia (Warband's native world) into a fantasy one by adding several fantasy races, weapons, magic, monsters and new factions and cities. The mod is currently an open beta so there is still much to do and polish, but it is quite fun.
I love this mod dearly. I just wish they would re-record the voice acting for the elves. I usually mute the game when I know I'm facing them and their high pitched man giggles. Only reason it's not 10/10, everything else is so fun.