I found this hardcore anarchy server that runs like a big experiment. The world keeps changing because of events and weird limits that get added over time.

At the start the world border was only 1000 blocks each way. Then it grows by 100 blocks each day at random so new land slowly opens up. When players went to the End a timer started and when it finished the End got shut off for who knows how long.

Griefing killing and stealing are allowed. Hacking and exploits are not allowed. Death is forever most of the time and when you die you turn into a ghost. As a ghost you are stuck near your own head and you cannot clip into the ground.

There is a revival system but it is not automatic. People have to find special revival spots as the border expands then place a dead players head there and pay a big resource cost to bring them back.

Crystal and anchor PVP are disabled. As the border grows you can find built structures with loot danger and little story hints. The stuff you mess with can also change things later so it feels like your choices matter.