Legendary Hardcore is a hardcore SMP where death means you are out for good. There are no map resets and there are no revives so every risk feels serious. A lot of players have joined over its first year and tons have died trying to survive.
It stays completely vanilla but uses plugins to make hardcore more interesting. You can get player heads and you can access dead players ender chests. It also has Simple Voicechat and advanced player statistic tracking plus more.
The world feels like a real story because everything is player led and not scripted. People make bases and alliances then it all can fall apart when someone dies. There is even a player maintained wiki that tracks the history and a page for every player who joined lived and died.
They also have an interactive map of the spawn region that shows changes over time. It supports 1.21.11 on Java Edition and Bedrock Edition.

