alliances
There are 3 repositories under alliances topic.
Dans-Plugins/Medieval-Factions
Allows players to organize themselves into feudal, diplomatic, lawful groups akin to nations.
Aquerr/EagleFactions
A simple yet powerful factions plugin for SpongeForge.
cfHxqA/Mission-Chief.Bot
It is a software to automate the actions - checkout the README.md! ALL game servers are supported.