This is a wild anarchy survival server called 1fighter2defenders or 1f2d. It has no rules at all and the world never resets.
People can grief build or cheat and all of that is allowed. There is no protection so you have to trust no one and watch your back all the time.
The server has been running since 2021 so the map is really old and full of history from thousands of players.
The main version is 1.21 but it also supports versions from 1.17 up to 1.21.10 so a lot of different clients can join in the chaos.
