Menu

modpack

Oneblock UltimateMinecraft modpack for 1.21.1

The ultimate modpack for Oneblock!

client and servernewest supported release 1.21.1AdventureChallengingLightweightMultiplayer
Latest version
1.2.0
Minecraft
1.21.1
Java
Java 21+
Loader
NeoForge
Licence
MIT
Downloads
21.8k
Updated
4 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Oneblock Ultimate servers

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

  • 1.21.1
  • NeoForge
  • One click modpack install
  • Dependencies handled
  • Tuned startup flags
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Minecraft versions

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

Other modpacks
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge21+declared8 Aug 2024

Download

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

Most recently published release

1.2.0release20 Jul 2026

Oneblock Ultimate.mrpack · 0.8 MB · for 1.21.1 · NeoForge

Download this release
c29465afccc0…
Older versions4
  • 1.1.05 Jun 20261.21.10.2 MB3.9k downloadsf50f1a6d5380…Get
  • 1.0.22 Dec 20251.21.10.5 MB15.9k downloads36fab65b0c11…Get
  • 1.0.11 Dec 20251.21.10.2 MB229 downloadsc79f607e8250…Get
  • 1.0.019 Nov 20251.21.10.2 MB1.4k downloads753f19d5e429…Get

Frequently asked

Does Oneblock Ultimate work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Oneblock Ultimate declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

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

Both. Every player needs it installed and so does the server, so anyone joining without it will be refused.

Which platform or loader does Oneblock Ultimate support?

NeoForge. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for Oneblock Ultimate?

Among the supported Minecraft releases above, the highest recorded requirement is Java 21 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.

What licence is Oneblock Ultimate under?

MIT, 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 Ultimate?

Use a launcher that imports packs, such as Prism Launcher, the Modrinth App or the CurseForge app, and open the pack file with it. The launcher installs the right loader and mods for you; installing a pack's mods by hand is the error-prone way.

Where do I download Oneblock Ultimate 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. When available, recorded download links go to the source for that release; verify the publisher, filename and any available checksum before running it.

Works on the same versions

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

Re-ConsoleA continued Legacy Console Edition experience, expanded upon with modern Java Edition content and QoL! (An Official Legacy4J Project)MAX FPS: Optimized🚀 MAX FPS WITHOUT UNNECESSARY MODS! Only 16 optimization mods - NOTHING EXTRA! ✅ ALL MAJOR VERSIONS ⚡ INSTALLS ON ANY LAUNCHER! (Guide below)Simply Optimized ReloadedAn unofficial port of Simply Optimized built to support every major mod loader and stay current with the newest versions of Minecraft.PacktrixPre-packed Official Modpack containing Patrix Resource Pack for easy install using Fabric/Quilt.FPS+ PvP Boost | Ultimate FPS & Combat Client [ Every Version ]Ultra-lightweight FPS boost & PvP modpack for Fabric. Boost FPS on low-end PCs with Sodium optimizations, lower input lag, cleaner visuals, and combat HUD tweaks built for Hypixel Bedwars, Duels, PotPvP & CPVP. Maximize frames and dominate fights.香草精华 Vanilla EssenceFaithful to the origional. Better vanilla experience without any new blocks or mobs

Details from Modrinth, where the author last updated it on 20 Jul 2026. We do not host files or republish descriptions. Available download links point to the author’s own release.

Not indexed yet. Score 54 against a threshold of 55. The page still exists and is still linked; it simply carries noindex until we hold more.

Is this information wrong or missing something? .