Rome at War is a total conversion modification for Mount & Blade: Warband set in 300 B.C., 23 years after the death of Alexander the Great.The mod supports both Single and Multiplayer and requires your Warband version to be at least 1.161+
About a year ago (or perhaps even more than a year ago), Rgcotl worked on creating a new world map for the mod which was unfortunately never finished. I thought I had lost the files of the map but managed to recover a backup of it on my online drive and I've been working on fixing it as well as I can for the past few days (I'm no modeller/artist) to the point it can be considered playable.
Still has some ways to go but it's a clear improvement over the current map as the screenshots show.