UneasyVanilla is a vanilla Minecraft server with a semi anarchy vibe and survival gameplay. It tries to stay true to the original Minecraft feel and keeps things simple.
The world is over 4 years old so you can find a lot of history and big projects. Spawn is totally griefed and your first spawn drops you into a maze of lavacasts. If you can escape you are free to explore and build your own base.
It feels lawless but it still has some rules to keep the server running well. Staff stays active and bans cheaters so the game feels fair and performance stays solid.
If you like surprise encounters making alliances or going solo and building huge things this place fits that style.