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modpack

9C: EternityMinecraft modpack for 1.21.1

The Modpack contains more than 200 modifications with a lot of enhancements and content to explore.

client and servernewest supported 1.21.1TechnologyAdventureChallengingCombat
Latest version
3.0.0-BETA
Minecraft
1.20.1 to 1.21.1
Java
Java 21+
Loaders
Fabric, NeoForge
Licence
MIT
Downloads
629
Updated
21 d ago
Available on
Modrinth
Space NodeOur hosting

Host 9C: Eternity servers

One click and 9C: Eternity is installed with the right loader, on hardware built for it.

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

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

Every version 9C: Eternity declares support for, newest first, with the Java runtime that version needs.

Other modpacks
MinecraftThroughJavaEvidenceReleased
1.21.1Fabric, NeoForge21+declared8 Aug 2024
1.20.1Fabric, NeoForge17+declared12 Jun 2023

Download

From 9C: Eternity’s own host. Nothing is re-hosted here.

3.0.0-BETAbeta24 Jul 2026

9C Eternity 3.0.0-BETA.mrpack · 15.2 MB · for 1.21.1

Download latest
a6b31dd8c6f0…
Older versions5
  • 2.1.123 Sept 20251.20.176.5 MB121 downloads4de47a092d74…Get
  • 2.1.014 Sept 20251.20.176.6 MB28 downloads5cc04ba77c23…Get
  • 2.0.022 Jan 20251.20.193.7 MB75 downloadsa917d10e3289…Get
  • 1.3.03 Oct 20241.20.186.5 MB75 downloads34994458efd7…Get
  • 1.2.07 May 20241.20.178.8 MB104 downloads01691b5f0c1b…Get

Frequently asked

Does 9C: Eternity work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version 9C: Eternity 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 9C: Eternity support?

Everything the author has declared, from 1.20.1 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install 9C: Eternity 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 9C: Eternity support?

Fabric, 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 9C: Eternity?

On the newest Minecraft version it supports, Java 21 or newer. The requirement comes from the Minecraft version you run rather than from the modpack itself, so on an older supported Minecraft the answer is that version's Java, not this one.

What licence is 9C: Eternity 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 9C: Eternity?

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 9C: Eternity 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. The download link goes to the source recorded for that release; verify the publisher, filename and 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)PacktrixPre-packed Official Modpack containing Patrix Resource Pack for easy install using Fabric/Quilt.Simply Optimized ReloadedAn unofficial port of Simply Optimized built to support every major mod loader and stay current with the newest versions of Minecraft.ElixirA well-researched performance & optimization modpack to make the game run smoother! With shader & Fresh Animations support. 26.3 ✔OptimumFuse[1.21.5] [Fabric📜] An open-source modpack that improves the game's performance and visuals, inspired by OptiFine, while staying true to the vanilla Minecraft experience.

Last checked 21 d ago against Modrinth. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

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