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mod

OneBlockUltimaMinecraft mod

This mod will give you a unique survival experience in a world where there is only one block. It adds a new type of "One Block" world that will regenerate whenever you break it.

Latest version
OneBlockUltima-forge-1.12.x-2.1.3
Minecraft
no version declared
Java
follows the game
Loaders
none declared
Licence
not stated
Downloads
155
Updated
6 d ago
Available on
CurseForge
Space NodePartner

Host OneBlockUltima servers

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

  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Download

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

OneBlockUltima-forge-1.12.x-2.1.3release25 Jul 2026

OneBlockUltima-forge-1.12.x-2.1.3.jar · 0.6 MB · for 1.12, 1.12.1, 1.12.2

Download latest
4904987a840f
Older versions4
  • OneBlockUltima-forge-1.7.10-2.1.225 Jul 20261.7.100.5 MB6e76c1385826Get
  • OneBlockUltima-forge-1.7.10-2.1.122 Jul 20261.7.100.5 MB20 downloads1a210670115aGet
  • OneBlockUltima-forge-1.12.x-2.1.222 Jul 20261.12, 1.12.1, 1.12.20.6 MB12 downloadsf3da02109719Get
  • OneBlockUltima-forge-1.12.x-2.1.118 Jul 20261.12, 1.12.1, 1.12.20.6 MB26 downloads163d035f55c1Get

Frequently asked

How do I install OneBlockUltima?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod 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 OneBlockUltima safely?

From the author's own page on CurseForge, 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.

Which Minecraft versions does OneBlockUltima work on?

The author has not declared a supported version in the metadata we sync, so there is nothing here we can state as fact. Check the project's own page before installing it, and treat an old mod with no declared version as untested on modern Minecraft.

Last checked 2 d ago against CurseForge. 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? .