Unstable Lab Minecraft 1.21.11 Server (United States)

The server IP for Unstable Lab is play.unstablelab.xyz. Bedrock players connect to play.unstablelab.xyz on port 19132 instead.

On Java Edition: start Minecraft, choose Multiplayer, then Add Server. Put Unstable Lab in the name box and play.unstablelab.xyz in the Server Address box, press Done, then select it and click Join Server. On Bedrock Edition (mobile, console or the Windows app) the flow differs and the port matters: choose Play, open the Servers tab, scroll down to Add Server, then enter Unstable Lab as the name, play.unstablelab.xyz as the address and 19132 as the port. Save it and it appears in your server list.

Unstable Lab runs Minecraft 1.21.11. Both Java and Bedrock clients can connect.

Yes. Unstable Lab accepts Bedrock Edition, which is the version Minecraft runs on phones, tablets, Xbox, PlayStation, Switch and the Windows app. Add it as a server with the address play.unstablelab.xyz and port 19132.

Server location for Unstable Lab: United States. That is where the machine is, which is the main thing deciding your ping to it.

Unstable Lab lists English as the language its community plays in.

Unstable Lab is listed under Unstable.

Over the last 14 days Unstable Lab has averaged 57 players online at once, and the highest count VoxelRank has recorded is 112. Both figures come from 1,235 automated checks by our own pinger, not from anything the server reports about itself. Its all-time record on VoxelRank is 146. It has room for 500 slots. The live count is shown at the top of this page.

Unstable Lab statistics

Across the last 14 days, Unstable Lab has the most players online around 16:00, averaging 76 players in that hour. The quietest stretch is around 08:00, averaging 36. All times UTC.

Unstable Lab statistics

VoxelRank pings Unstable Lab every few minutes and records the result. Across all 3,961 checks since it was listed, it has answered 99.7% of them. That is our own measurement, not something the server reports about itself. Whether it is up at this moment is the status dot at the top of this page.

Unstable Lab was added to VoxelRank on September 1, 2026. That is the day its listing was created here, so the server itself may be older.

You can vote for Unstable Lab at https://voxelrank.com/vote/8610-unstable-lab, once every 24 hours. Voting moves it up the ranking for the current month, which resets on the 1st. Votes reset at fixed times, starting at 0:00 (5:00 UTC) (America/New_York time). To vote, open that page, type the username you play with and press “Vote now”. You do not need an account, and some votes ask for a short anti-bot check first.

Vote for Unstable Lab

Unstable Lab is currently #108 overall. Position is decided by votes received in the current calendar month and nothing else; placement on this site can be bought, ranking cannot.

Unstable Lab sits at #6 of 36 in Unstable, #395 of 4,460 in English, #456 of 3,145 in Bedrock, #702 of 6,701 in 1.21 and #731 of 7,077 in Java. Each of those positions is counted on that category's own list, which you can open and scroll.

Servers like Unstable Lab include zKraft (also Unstable), ShadowFlareSMP - Cracked DonutSMP (also Unstable), CWR MC Network and Arcane Realms.

Unstable Lab was online at our last check (November 6, 2026 at 11:42 AM UTC). Players online: 41.

18m ago

Some of the players online on Unstable Lab as of October 25, 2026 at 9:25 PM UTC: bananaman1251956, ofer11, NuclearBios, Nikolas776, Dusk123GUY, puppygirlplane, __ZXNullXZ__, goldenpumpking, tzitzikos13, Katz2207 and Sirummx.

No - Unstable Lab is an unclaimed listing. It was imported, and nobody has confirmed ownership of it yet, so nobody is actively keeping it up to date.