Europa Barbarorum II is a total conversion modification (mod). It covers roughly the same time period as the Imperial Campaign included with
Rome: Total War (R:TW), but made for use with Medieval 2 Total War:
Kingdoms.  Contrary to what the name might imply, Europa Barbarorum is
not solely focused on barbarian factions. The name was derived from the
roots of the project when our desire was to portray barbarians more
accurately, but Europa Barbarorum goes to great lengths to portray all
factions correctly, including Rome.

The Europa Barbarorum project started in January 2004 as a team with the intent of informing The
Creative Assembly (CA) about the historical nature of the "barbarian"
factions in Rome: Total War. Our aim was to gather as large an amount of
historical information as we could and pass it on to the Creative
Assembly, prior to R:TW's release, in order for their portrayal of the
"barbarian" factions in the game to be more accurate. Later, the team
expanded their aim to also correcting ahistorical representations
everywhere on the map. As it became clear that CA would not use this
sort of information, the group decided to transform the project into a
modification.

Europa Barbarorum I created for R:TW has received critical acclaim and has been downloaded well over 100,000 times for each version. Europa
Barbarorum II created for Medieval 2 Total War: Kingdoms aims to surpass
everything in Europa Barbarorum I.