Unstable SMP FAQ

Yes. Unstable SMP is a public Minecraft survival multiplayer (SMP) server. Anyone with a legitimate Minecraft Java Edition account can join without a whitelist or an application.

The official Unstable SMP IP is unstablesmp.io. Open Minecraft Java Edition, click Multiplayer, click Add Server, and enter unstablesmp.io. No port is needed.

Open Minecraft Java Edition, click Multiplayer, click Add Server, then enter unstablesmp.io as the server address and join. Do not add a port unless Minecraft explicitly asks for one.

No. Unstable SMP runs on Minecraft Java Edition only. Bedrock Edition is not supported and there is no Bedrock port. Play on PC, Mac or Linux.

No. Unstable SMP requires a legitimate, purchased Minecraft account. Cracked launchers, shared accounts and stolen credentials are not allowed and result in a permanent ban.

The live server advertises 1.21.1+ for Java and Paper 26.3 server software. Unstable SMP usually runs several versions at once through its proxy, so check the current announcement in Discord if your client is refused.

The server slot count is 14,000 players. The live count is shown on this site and updates automatically from the server status feed.

No. KillAura, reach, ESP and other cheat clients are banned. Limited, non-cheat optimisation mods such as Sodium, Lithium and Fabric API are allowed. See the full Unstable SMP rules for the exact list.

Yes. PvP is allowed on the server. Dupes, exploits, unfair combat mods and griefing are not. Fights follow normal Minecraft PvP conventions.

Wemmbu, FlameFrags, ParrotX2 and Spoke all make official Unstable SMP content. They publish large-scale survival, PvP and event videos from the server, which is why the address is searched for so often.

Server events, version changes and community updates are posted in the official Discord at https://discord.gg/unstable-network. The website and the Discord are the only official sources.

Open a ticket in the Discord, or email support@unstablesmp.io. Include your Minecraft username, your client version and the exact error message so the issue can be identified quickly.

They are related but different things. The Unstable Universe is a scripted Minecraft video series made by ParrotX2, Wemmbu and Spoke. Unstable SMP is the public survival server that Unstable SMP runs, which those creators and many others play on. If you are looking for a server IP to join, it is unstablesmp.io. If you are looking for the episodes, they are on YouTube.

They are out of date or wrong. Unstable SMP has never run a Bedrock listener, so Bedrock Edition, console and mobile cannot connect and no Bedrock port exists. Several other websites claim an address for Unstable SMP with a Bedrock port; those are separate servers and the port will not connect. The only address for this server is unstablesmp.io.

Around 14,000 slots, with roughly 8,000 players online at peak. The live count is on the Unstable SMP website and reads directly from the server, so it is never out of date.

The Unstable SMP server IP is unstablesmp.io. Enter it on its own, with no port, in Minecraft Java Edition.

Open Minecraft Java Edition, click Multiplayer, click Add Server, enter unstablesmp.io and join. There is no whitelist, no application and no purchase.

Yes. Joining the server is free and always will be. The store sells optional ranks and cosmetics, and buying nothing does not limit you in any way.

No. There is no whitelist and no application form. Any player with a legitimate Minecraft Java Edition account can connect immediately.

No. Unstable SMP is Java Edition only. Bedrock, console and mobile are not supported, and there is no Bedrock port, so port 19132 will not connect.

No port is required. Java Edition uses default port 25565 through DNS. If Minecraft insists on a port, 25565 is the correct value.

Unstable SMP supports 1.21.1+ and newer, running Paper 26.3 with up to 14,000 player slots. Older clients are refused rather than downgraded.

There are up to 14,000 slots, with roughly 8,000 players online at peak. The live count on the homepage reads straight from the server, so it is never out of date.

Yes, as long as they are performance and cosmetic. Sodium, Lithium, Starlight, Fabric API, Mod Menu, Zoomify and OptiFine are explicitly allowed. Anything that renders players or blocks through walls, automates combat, or alters movement is a cheat and is banned.

Yes. PvP is allowed and combat is real. Dupes, exploits and unfair combat mods are not. Read the rules before you touch anyone's base.

No. Cracked launchers, offline-mode clients and shared logins are banned permanently. They also fail authentication against the server before that happens.

They are related but different. The Unstable Universe is a scripted video series by ParrotX2, Wemmbu and Spoke. Unstable SMP is the public survival server at unstablesmp.io that they play on. If you want an address to join, it is unstablesmp.io.

The official Unstable SMP Discord is https://discord.gg/unstable-network. It is the only Discord server for this server, and it is where announcements, support and event invites are posted.

Unstable SMP runs on a network with regions in Asia, Europe, North America and Australia, as stated in the server's own status message. Players are routed to the nearest region automatically.

The rules ban KillAura, X-ray, reach, ESP, fly, dupes and exploits, and enforcement is active. Optimisation and cosmetic mods are fine, so you can run Sodium without any risk to your account.

The store sells optional ranks, gems and cosmetics. None of it is required to play, and nothing in the base game is locked behind a purchase. It lives at https://www.unstablesmp.io/store/.

Open a ticket in the Discord with your username, the time it happened and any evidence. Include the exact error message if you are reporting a connection problem rather than a player.

The official website is https://www.unstablesmp.io. It publishes the server address, the rules, the guides and the wiki, and it is the only site that publishes the correct address.