Anarchy Network is a semi anarchy Minecraft server that tries to stay close to vanilla survival. It has very few rules and very few changes so it feels like regular Minecraft but with more chaos. The server is hosted in New York City and it runs all the time.
You can join on Java versions from 1.7.2 up to 1.21.10. They say 1.21.10 is the best version to use so stuff does not break. The world border is huge with two million blocks so there is a lot of space to explore and hide.
There are no map resets and no teleport commands so travel actually matters. There is no pay to win at all. Griefing and PvP are fully allowed so you really have to watch your back. The only special command is spawn so players who go super far away can still get back to other people. The nether roof is allowed and phantoms are removed. Also only half the players on the server have to sleep to skip the night.
The rules are pretty simple. No exploits and no lag machines. No duping. No spamming chat and no harassment or racial slurs. Besides that players can pretty much do what they want and shape the world however they feel like.

