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data pack

OneblockMinecraft data pack for 1.21.10

A "Oneblock" is a variant of the popular game Minecraft. In this mode, players start on a single floating block in the void.

server onlynewest supported 1.21.10AdventureGame MechanicsMinigame
Latest version
0.3+mod
Loaders
Data pack, NeoForge, Quilt, Forge and 1 more
Licence
CC0-1.0
Downloads
73.5k
Updated
11 mo ago
Available on
Modrinth
Space NodePartner

Host Oneblock servers

One click and Oneblock is installed with the right loader, on hardware built for it.

  • 1.21.10
  • Data pack
  • NeoForge
  • Quilt
  • Forge
  • One click install
  • Version matched
  • Automatic backups
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Minecraft versions

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

Other data packs
MinecraftThroughJavaEvidenceReleased
1.21.10Data pack, NeoForge, Quilt, Forge, Fabric21+declared7 Oct 2025
1.21.9Fabric, Quilt, NeoForge, Forge, Data pack21+declared30 Sept 2025
1.21.8NeoForge, Quilt, Forge, Fabric, Data pack21+declared17 Jul 2025
1.21.7Data pack, Quilt, NeoForge, Forge, Fabric21+declared30 Jun 2025
1.21.6Forge, Quilt, Data pack, NeoForge, Fabric21+declared17 Jun 2025
1.21.5Forge, Data pack, Fabric, NeoForge, Quilt21+declared25 Mar 2025
1.21.4Data pack, Quilt, NeoForge, Forge, Fabric21+declared3 Dec 2024
1.21.3Fabric, Quilt, NeoForge, Forge, Data pack21+declared23 Oct 2024
1.21.2Fabric, Quilt, NeoForge, Forge, Data pack21+declared22 Oct 2024
1.21.1Fabric, Quilt, NeoForge, Forge, Data pack21+declared8 Aug 2024
1.21Fabric, Quilt, NeoForge, Forge, Data pack21+declared13 Jun 2024

Download

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

0.3+modrelease12 Oct 2025

oneblock-data-pack-0.3.jar · 0.1 MB · for 1.21, 1.21.1, 1.21.2, 1.21.3

Download latest
0f8d0a824f2d
Older versions5
  • 0.312 Oct 20251.21, 1.21.1, 1.21.2, 1.21.3, 1.21.40.0 MB5.5k downloads9ef1d4af5fcaGet
  • 0.2+mod10 Aug 20251.21, 1.21.1, 1.21.2, 1.21.3, 1.21.40.1 MB7.6k downloads341f5839c83fGet
  • 0.210 Aug 20251.21, 1.21.1, 1.21.2, 1.21.3, 1.21.40.0 MB594 downloads307480c748f5Get
  • 0.1+mod24 Jul 20241.21, 1.21.1, 1.21.2, 1.21.30.0 MB20.2k downloads420fb45b0bd7Get
  • 0.117 Jul 20241.21, 1.21.1, 1.21.3, 1.21.4, 1.21.50.0 MB3.6k downloadscc43f5a91641Get

Frequently asked

Does Oneblock work on Minecraft 1.21.10?

Yes. 1.21.10 is the newest Minecraft version Oneblock 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 Oneblock support?

Everything the author has declared, from 1.21 up to 1.21.10. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Oneblock on the client or the server?

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

Which loader does Oneblock need?

Data pack, NeoForge, Quilt, Forge, Fabric. A build for one loader will not load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for Oneblock?

Java 21 or newer, because that is what the newest Minecraft release it supports requires. The requirement comes from the game rather than from the data pack itself.

What licence is Oneblock under?

CC0-1.0, 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 Oneblock?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the data pack and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download Oneblock safely?

From the author's own page on Modrinth, which is where the data here is synced from. MCReference never mirrors, re-hosts or repackages a file: every download button points at the original source, so you get exactly what the author published.

Works on the same versions

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

Last checked 2 mo 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? .