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data pack

One BlockMinecraft data pack for 1.21.11

Start on a single block in the void - every item you will ever own falls out of it. Every player who joins gets their own island automatically. Server-side datapack.

server onlynewest supported 1.21.11Game MechanicsWorldgenMinigame
Latest version
1.21.1
Minecraft
1.18 to 1.21.11
Licence
LicenseRef-All-Rights-Reserved
Downloads
3.1k
Updated
8 d ago
Available on
Modrinth
Space NodeOur hosting

Host One Block servers

Deploy a server with One Block already added to the world, on hardware built for it.

  • 1.21.11
  • Data pack
  • One click install
  • Version matched
  • Automatic backups
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

Every version One Block declares support for, newest first, with the Java runtime that version needs.

Other data packs
MinecraftThroughJavaEvidenceReleased
1.21.11Data pack21+declared9 Dec 2025
1.21.10Data pack21+declared7 Oct 2025
1.21.9Data pack21+declared30 Sept 2025
1.21.8Data pack21+declared17 Jul 2025
1.21.7Data pack21+declared30 Jun 2025
1.21.6Data pack21+declared17 Jun 2025
1.21.5Data pack21+declared25 Mar 2025
1.21.4Data pack21+declared3 Dec 2024
1.21.3Data pack21+declared23 Oct 2024
1.21.2Data pack21+declared22 Oct 2024
1.21.1Data pack21+declared8 Aug 2024
1.21Data pack21+declared13 Jun 2024
1.20.6Data pack21+declared29 Apr 2024
1.20.5Data pack21+declared23 Apr 2024
1.20.4Data pack17+declared7 Dec 2023
1.20.3Data pack17+declared4 Dec 2023
1.20.2Data pack17+declared20 Sept 2023
1.20.1Data pack17+declared12 Jun 2023
1.20Data pack17+declared2 Jun 2023
1.19.4Data pack17+declared14 Mar 2023
1.19.3Data pack17+declared7 Dec 2022
1.19.2Data pack17+declared5 Aug 2022
1.19.1Data pack17+declared27 Jul 2022
1.19Data pack17+declared7 Jun 2022
1.18.2Data pack17+declared28 Feb 2022
1.18.1Data pack17+declared10 Dec 2021
1.18Data pack17+declared30 Nov 2021

Download

From One Block’s own host. Nothing is re-hosted here.

1.21.1release6 Jun 2026

OneBlockServer_1.21-1.21.1.zip · 0.0 MB · for 1.21, 1.21.1

Download latest
6e4c9677d988…
Older versions14
  • 1.21.96 Jun 20261.21.9, 1.21.10, 1.21.110.0 MB5 downloadsc7bd1653f721…Get
  • 1.21.86 Jun 20261.21.7, 1.21.80.0 MB14 downloads8743c7674e53…Get
  • 1.21.66 Jun 20261.21.60.0 MBa36839392202…Get
  • 1.21.56 Jun 20261.21.50.0 MBf9908ff7bee2…Get
  • 1.21.46 Jun 20261.21.40.0 MB3 downloads1ea5ee27d285…Get
  • 1.21.36 Jun 20261.21.2, 1.21.30.0 MB2 downloads09c84d3a90b1…Get
  • 1.20.66 Jun 20261.20.5, 1.20.60.0 MB7 downloads687f9b2efb60…Get
  • 1.20.46 Jun 20261.20.3, 1.20.40.0 MB5 downloads23b5492edc14…Get
  • 1.20.26 Jun 20261.20.20.0 MB2 downloadsf616829820b8…Get
  • 1.20.16 Jun 20261.20, 1.20.10.0 MB333 downloads0b44017a2e85…Get
  • 1.19.36 Jun 20261.19, 1.19.1, 1.19.2, 1.19.30.0 MB100 downloads3f48c4513ed1…Get
  • 1.19.46 Jun 20261.19.40.0 MB11 downloads0263eba78988…Get
  • 1.18.16 Jun 20261.18, 1.18.10.0 MB12 downloads78a4691cb7c3…Get
  • 1.18.26 Jun 20261.18.20.0 MB21 downloadsd3cb6220e81d…Get

Frequently asked

Does One Block work on Minecraft 1.21.11?

Yes. 1.21.11 is the newest Minecraft version One Block declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Which Minecraft versions does One Block support?

Everything the author has declared, from 1.18 up to 1.21.11. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install One Block on the client or the server?

The server only. Players join with an ordinary Minecraft client and install nothing.

What licence is One Block under?

LicenseRef-All-Rights-Reserved, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.

How do I install One Block?

Data packs install per world: put the downloaded file in that world's datapacks folder and run /reload, or add it when creating the world. No loader is involved. On a server, the world folder lives next to the server jar.

Where do I download One Block safely?

Start with the author's page on Modrinth, which is where the data here is synced from. MCReference does not host or repackage files. The download link goes to the source recorded for that release; verify the publisher, filename and checksum before running it.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

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Last checked 8 d ago against Modrinth. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

Is this information wrong or missing something? .