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mod

SaturnMinecraft mod for 1.21.1

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

newest supported 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
19 mo ago
Available on
Modrinth
Space NodePartner

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.

All 58 releases
mc1.21.1-0.1.5release30 Jan 2025

saturn-mc1.21.1-0.1.5.jar · 0.1 MB · for 1.21.1

Download latest
e328d85d449b…
Older versions24
  • mc1.20.6-0.1.321 May 20241.20.60.1 MB3.0k downloads5dce6cc63e70…Get
  • 0.1.46 Mar 20241.19.20.1 MB994.5k downloads17a922e87369…Get
  • mc1.18.2-0.1.56 Mar 20241.18.20.1 MB99.2k downloads1e7dde87218e…Get
  • mc1.20.4-0.1.39 Feb 20241.20.40.1 MB4.5k downloads2e5f8f9e1198…Get
  • mc1.20.1-0.1.39 Feb 20241.20.10.1 MB2.6M downloads8b4b9a69e7b5…Get
  • mc1.19.2-0.1.39 Feb 20241.19.20.1 MB3.4k downloads8f2f1dc042ba…Get
  • mc1.18.2-0.1.49 Feb 20241.18.20.1 MB7.8k downloads9ee15655569d…Get
  • mc1.20.1-0.1.29 Jan 20241.20.10.1 MB19.8k downloads5f5b1e571813…Get
  • mc1.19.2-0.1.29 Jan 20241.19.20.1 MB247.0k downloadsc4b3be0a47d6…Get
  • mc1.18.2-0.1.39 Jan 20241.18.20.1 MB16.4k downloadsf3830bd425f8…Get
  • mc1.20.1-0.1.123 Dec 20231.20.10.1 MB105.2k downloads0f6852e44dc8…Get
  • mc1.18.2-0.1.223 Dec 20231.18.20.1 MB1.6k downloadsf2d8b2170243…Get
  • mc1.19.2-0.1.123 Dec 20231.19.20.1 MB4.1k downloads07f14b39e3f0…Get
  • mc1.20.1-0.1.014 Dec 20231.20.10.1 MB9.8k downloads03091d59fa32…Get
  • mc1.19.2-0.1.014 Dec 20231.19.20.1 MB572 downloads0a4b48b75bf4…Get
  • mc1.18.2-0.1.114 Dec 20231.18.20.1 MB2.7k downloadseadb0e3e494e…Get
  • mc1.20.1-0.0.1010 Dec 20231.20.10.0 MB6.1k downloads0e465856bc8a…Get
  • mc1.19.2-0.0.1010 Dec 20231.19.20.0 MB750 downloads065c90bd47d3…Get
  • mc1.18.2-0.1.010 Dec 20231.18.20.0 MB376 downloads230b401ac4e9…Get
  • mc1.20.1-0.0.99 Dec 20231.20.10.0 MB174 downloads04aa1d7caf0f…Get
  • mc1.19.2-0.0.99 Dec 20231.19.20.0 MB123 downloads833af29b28de…Get
  • mc1.18.2-0.0.109 Dec 20231.18.20.0 MB136 downloads1afc89d3cf0a…Get
  • 0.0.99 Dec 20231.18.20.0 MB122 downloads5232eabde479…Get
  • mc1.20.1-0.0.89 Dec 20231.20.10.0 MB267 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 loader does Saturn need?

NeoForge, Forge. 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 Saturn?

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 mod itself.

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?

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.

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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? .