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mod

SaturnMinecraft mod for 1.21.1

A performance mod designed to optimize Minecraft's memory usage.

newest supported release 1.21.1Optimization
Latest version
mc1.21.1-0.1.5
Minecraft
1.16.5 to 1.21.1
Java
Java 21+
Loaders
NeoForge, Forge
Licence
LGPL-3.0-only
Downloads
4.9M
Updated
21 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Saturn servers

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

  • 1.21.1
  • NeoForge
  • Forge
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Minecraft versions

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

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge, Forge21+declared8 Aug 2024
1.20.6NeoForge, Forge21+declared29 Apr 2024
1.20.4Forge, NeoForge17+declared7 Dec 2023
1.20.2NeoForge, Forge17+declared20 Sept 2023
1.20.1Forge, NeoForge17+declared12 Jun 2023
1.19.4NeoForge, Forge17+declared14 Mar 2023
1.19.3Forge, NeoForge17+declared7 Dec 2022
1.19.2NeoForge, Forge17+declared5 Aug 2022
1.18.2NeoForge, Forge17+declared28 Feb 2022
1.16.5NeoForge, Forge8+declared14 Jan 2021

Download

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

Browse 58 indexed releases

Most recently published release

mc1.21.1-0.1.5release30 Jan 2025

saturn-mc1.21.1-0.1.5.jar · 82 KB · for 1.21.1 · NeoForge

Download this release
e328d85d449b…
Older versions24
  • mc1.20.6-0.1.321 May 20241.20.685 KB3.0k downloads5dce6cc63e70…Get
  • 0.1.46 Mar 20241.19.297 KB994.5k downloads17a922e87369…Get
  • mc1.18.2-0.1.56 Mar 20241.18.283 KB99.2k downloads1e7dde87218e…Get
  • mc1.20.4-0.1.39 Feb 20241.20.488 KB4.5k downloads2e5f8f9e1198…Get
  • mc1.20.1-0.1.39 Feb 20241.20.190 KB2.6M downloads8b4b9a69e7b5…Get
  • mc1.19.2-0.1.39 Feb 20241.19.297 KB3.4k downloads8f2f1dc042ba…Get
  • mc1.18.2-0.1.49 Feb 20241.18.283 KB7.8k downloads9ee15655569d…Get
  • mc1.20.1-0.1.29 Jan 20241.20.182 KB19.8k downloads5f5b1e571813…Get
  • mc1.19.2-0.1.29 Jan 20241.19.289 KB247.0k downloadsc4b3be0a47d6…Get
  • mc1.18.2-0.1.39 Jan 20241.18.275 KB16.4k downloadsf3830bd425f8…Get
  • mc1.20.1-0.1.123 Dec 20231.20.155 KB105.2k downloads0f6852e44dc8…Get
  • mc1.18.2-0.1.223 Dec 20231.18.253 KB1.6k downloadsf2d8b2170243…Get
  • mc1.19.2-0.1.123 Dec 20231.19.253 KB4.1k downloads07f14b39e3f0…Get
  • mc1.20.1-0.1.014 Dec 20231.20.152 KB9.8k downloads03091d59fa32…Get
  • mc1.19.2-0.1.014 Dec 20231.19.253 KB572 downloads0a4b48b75bf4…Get
  • mc1.18.2-0.1.114 Dec 20231.18.253 KB2.7k downloadseadb0e3e494e…Get
  • mc1.20.1-0.0.1010 Dec 20231.20.129 KB6.1k downloads0e465856bc8a…Get
  • mc1.19.2-0.0.1010 Dec 20231.19.237 KB750 downloads065c90bd47d3…Get
  • mc1.18.2-0.1.010 Dec 20231.18.238 KB376 downloads230b401ac4e9…Get
  • mc1.20.1-0.0.99 Dec 20231.20.130 KB174 downloads04aa1d7caf0f…Get
  • mc1.19.2-0.0.99 Dec 20231.19.238 KB123 downloads833af29b28de…Get
  • mc1.18.2-0.0.109 Dec 20231.18.240 KB136 downloads1afc89d3cf0a…Get
  • 0.0.99 Dec 20231.18.247 KB122 downloads5232eabde479…Get
  • mc1.20.1-0.0.89 Dec 20231.20.138 KB267 downloads430f155880de…Get

Frequently asked

Does Saturn work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Saturn 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 Saturn support?

Everything the author has declared, from 1.16.5 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.

Which platform or loader does Saturn support?

NeoForge, Forge. 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 Saturn?

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 Saturn under?

LGPL-3.0-only, 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 Saturn?

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 Saturn 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.

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Details from Modrinth, where the author last updated it on 30 Jan 2025. We do not host files or republish descriptions. Available download links point to the author’s own release.

Is this information wrong or missing something? .