gotta admit it, it is a click bait title but it worked seeing you're reading this.
but seriously, i do have made a new mod that right now is the most advanced Public mod called Factions. its a new diplomacy mod with a ton of features, including Faction chat, Faction wars and much more!
The mod doesnt have a description.txt yet, so here is what I copied from one of the test games:
For those that were not included in the first game, the Factions mod is a new mod that enforces diplomacy (cannot attack players that are not at war with you) kinda similar to the Advanced Diplo Mod V4 but with the addition of custom teams, Factions!
Players can create their own Factions, players can join other Factions, players can declare war on other Factions (Faction against Faction war), players can declare war on individual players (player against player war), etc. This mod is extremely customizable with now even the ability to configure which slot starts in which faction, what for relations it has with other players and what for relation the Faction has with other Factions!