I found a Minecraft anarchy server called MinecraftOffline that runs on 1.21.11 and it is all about doing what you want.
The world is eternal and they say it never resets so your builds and mistakes stay forever. Gameplay is enhanced with bespoke plugins so it is not just plain vanilla.
It is hosted in Finland which should feel good for European players and it is built on reliable hardware so it should stay stable when you are trying to survive the chaos.
Stable EU Anarchy No Resets Ever

GG.MINEWIND.NET New Server IPEU Lifesteal Anarchy No Resets

I found MinecraftOffline and it is a lifesteal anarchy server where fights matter a lot. If you die you lose hearts so people play careful or they go full chaos.
It runs on version 1.21.11 and it has a zero reset policy so your progress stays. The server is hosted in Finland so it should feel good for players in Europe.
It also has custom plugins so it is not just plain vanilla. This one feels like a place for raiding and PvP and messy survival all the time.
GG.MINEWIND.NET New Server IPRandom Item Drop SMP With Raid PvP

I found a small server called 30Timers and it feels like survival but with way more chaos. Every 30 seconds you get a random item. It can be totally bad or it can be super rare so you never know what is coming next.
They also built custom stuff around the idea. There is a custom mineral called Chronium with time style effects. A full armor set can sometimes dodge hits and the sword can sometimes hit twice so pvp gets really random.
There are no land claims so bases can be raided and griefed if you do not protect them. To help with that you can buy different turrets in the shop to defend your base.
The shop changes every in game day. The main exploration world is called Space and it has floating islands instead of normal land. Mines also regenerate ores after they get mined out. The server is in alpha so bugs can happen and they want feedback.
GG.MINEWIND.NET New Server IPDeadMans Land Vanilla No Mercy SMP

DeadMans Land is a vanilla style SMP that feels like it is made for players who want danger all the time. It is all about survival where every run in with someone can turn into a fight.
PvP is always a big deal here and you are expected to protect your own stuff. Raiding is fully allowed so bases can get breached and looted. Griefing is also not restricted so if you build something you better be ready to lose it.
The world is open and it sounds like resources can feel scarce. Admins are active and the server says it is not pay to win. Trust is a big thing and getting betrayed seems normal so play smart and watch your back.
There is also a Bedrock port listed so more people can join in.
GG.MINEWIND.NET New Server IPSpawntrapped Chaos Survival With PvP Griefing

This is a survival server where players can fight and grief. It feels like the kind of place where you have to watch your back and protect your stuff.
The world is never getting reset so anything you build can stay forever if you can defend it. Cheats are not allowed so hacking and duping items will get you in trouble.
It supports both Java and Bedrock so more people can join in on the same chaos.
GG.MINEWIND.NET New Server IPNo Rules Anarchy Server Join Now

One Anarchy is an anarchy server with no rules at all.
It is the kind of place where players can do whatever they want and the world can get really chaotic.
If you like pure anarchy gameplay then this server is basically built for that.
GG.MINEWIND.NET New Server IPVanguard SMP Season 1 Grief Ready

The Vanguard SMP is starting season 1 and it is made for players who want real conflict. PVP is allowed and griefing is allowed so you have to be smart about where you build and who you trust.
It also uses a custom infuse SMP plugin to make the game feel more fun and more interesting than normal survival.
They use written applications to pick who joins so it is aimed at dedicated players. The server is planned to release once they get enough members.
GG.MINEWIND.NET New Server IPSemi Anarchy Vanilla Survival No Resets

Anarchy Network is a semi anarchy survival server that tries to feel like pure Vanilla Minecraft with only a few changes. It launched on October 11th 2024 and it is hosted in New York City.
The server stays online all the time and it lets you join on Java versions from 1.7.2 up to 1.21.11. It is recommended to play on 1.21.10 so things run smoother.
The world is huge with a border set to 2 million blocks. There are no map resets and no teleporting. There is no pay to win and griefing and PvP are allowed.
The only command that is allowed is /spawn so people far away are not stuck alone. Nether roof access is allowed phantoms are removed and only half the players are needed to skip the night.
They do not allow exploits lag machines duping spamming or harassment and racial slurs in chat.
GG.MINEWIND.NET New Server IPDEADMANS LAND VANILLA SMP NO MERCY

Deadmans Land is a Vanilla+ SMP where the whole point is survival with real danger. It feels like a place made for raiders and PvP players where nobody is going to protect you.
PvP is always a threat and if you cannot defend your stuff then it can be taken. Raiding is on so people can break into bases and take loot. Griefing is also allowed so you should build smart and stay ready.
It also has custom enchantments so players can push past normal vanilla limits. There are QOL enhancements too so you can play in new ways to get an edge.
The server supports both Bedrock and Java and it is cross version so you do not have to worry about matching one exact version. Staff is active and they say it is not pay to win.
GG.MINEWIND.NET New Server IPGregworks 1.7.10 Semi Anarchy Tech War

Gregworks is a modded Minecraft server running a civilization event on 1.7.10. The vibe is semi anarchy and it sounds like things can get pretty chaotic.
The main focus is GregTech so you will be building big tech progress and heavy factories. There is space travel with Galacticraft and GalaxySpace and there are more places to explore like Twilight Forest and Atum.
Automation is a big deal here with mods like ProjectRed and BluePower and you can run your base with OpenComputers. There is also a lot of breeding and upgrades with Forestry Binnies and Gendustry.
For fighting there are weapons and missile mods so players can go to war. The only real rule is no cheating or exploiting so it is wild but still meant to be fair.
GG.MINEWIND.NET New Server IP
