Posalon is a worldbuilding server that has been running for over a month and it stays active. People play from different places and it supports crossplay between platforms.

Right now the server is in a war era with nations going after each other. You can start your own nation and build it up with towns and projects or you can join a side and fight in the bigger conflict.

The main feature is Movecraft so players can build working ships planes tanks and submarines for huge battles. It also uses Brewery X plus lands guns a stock market and shops. The goal is not just conquest it is making shared history with the community.