This is a modded modern apocalypse server with a big horror vibe and a story that moves forward on real dates. Everyone starts trapped inside a government quarantine zone called Alpigus and the grid is only stable for a short time.
For the first 7 days players cannot leave the zone. When the wall loses power the world opens up and the Nether unlocks and the End becomes reachable.
Later the server hits a grid failure event and a nuke drops inside the wall and wipes everything in that area. If you did not escape before it happens you are basically done.
It is not hardcore. There is land claiming and it stops griefing and PvP but it does not stop stealing. You can also toggle PvP inside claims using claim commands.
Modern Apocalypse Quarantine Survival Server

GG.MINEWIND.NET New Server IP99b99t Hardcore Chaos Anarchy

I found this server called 99b99t and it is a straight up anarchy world. There are no rules and no limits so you can do whatever you want and nobody will stop you.
The server runs all day and night so it is always on. The difficulty is set to hard so mobs and players can destroy you if you are not careful.
You can join with Java from version 1.12.2 up to 1.21.11 so lots of people can connect. The world is brand new so spawn and the rest of the map are still getting ruined and built at the same time.
It is basically pure chaos and survival where you try to make a base or join others or just fight everyone. If you want a place with no rules and real anarchy this is that kind of server.
GG.MINEWIND.NET New Server IPDeadMan’s Land Classic Factions PvP

DeadMan's Land is a classic factions server where everything is about survival and power. It feels really intense because it is all about who can be stronger and more ruthless.
You join and make or join a faction then start building up your base. You make allies or enemies and try to grow your own little empire. The whole point is to raid other players and defend your stuff.
The server uses classic factions style gameplay. There are custom events and the pvp is made to feel balanced so fights are more about skill. There are lots of adventures if you like exploring and fighting other players.
The vibe is kill or be killed. You claim land fight rivals and try to conquer as much as you can. If you like tense survival and faction wars this server is made for that.
GG.MINEWIND.NET New Server IPUnbound SMP Hardcore Lifesteal PvP

Unbound SMP is a hardcore Lifesteal survival server where every fight actually matters. When you kill another player you steal their hearts and when you die you lose hearts. If you fall too low you risk getting knocked out. It feels really intense because every battle can change who is strong and who is weak.
The whole server is about PvP and survival at the same time. You can team up with other players and make alliances but you never fully know who to trust. People can betray you and take your hearts so you have to think before you fight or before you choose your friends.
The world is survival so you still build and explore but there is always the danger of someone coming after you. Power is not given for free. You have to take it from other players and protect what you have.
The server runs on Minecraft Java edition and uses version 1.21.8. It is meant to be a competitive place but still feels welcoming if you like a challenge. If you want survival where death has real consequences this server fits that really well.
GG.MINEWIND.NET New Server IP
