http://www.moddb.com/mods/knights-and-barbarians
I was really pretty impressed with this mod. Works very nicely, looks the part, and is rebalanced such that you can actually turtle with walled cities and end up in proper tooth and nail raiding and turf battles. Muchly reccommended. :)
So basically it's a recreation of AoE2 in AoE3 engine?
The models look pretty sweet by the way.
Pretty much. I tested it with Byzantines + Crusaders VS Seljulks and Saracens on Crete, with a veeeery long-fought turtling victory on my part :)