Unstable SMP Minecraft server banner
Unstable SMP
1.21.1+ AS,EU,NA,AU

About Unstable SMP

Unstable SMP is a free public Minecraft Java Edition survival server at
unstablesmp.io. No port needed, no whitelist, no purchase required. Join with
any Minecraft Java account on version 1.21.1 or newer (Paper 26.3), then
drop into a large shared survival world with player-run shops, towns,
factions and events. 14,000 slots and roughly 8,000 players online at peak.
Java Edition only - Bedrock, console and mobile are not supported. Not
affiliated with Mojang or Microsoft.

How to join Unstable SMP

1Open Minecraft Java Edition and click Multiplayer.
2Click Add Server and enter a name of your choice.
3Enter the server address unstablesmp.io into the Server Address field.
4Click Done, then double-click the server to join.

Frequently Asked Questions

The Java Edition address is unstablesmp.io.

Yes, the server is currently online with 8,763 of 14,000 player slots in use.

Unstable SMP lists support for 26.3, and reports Paper 26.3 to clients.

Use the Discord link in the Server Details panel to join the community server.

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