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XtremePackMinecraft modpack for 1.21.8

The essential optimization core. Maximum performance and stability for your custom modpacks.

client onlynewest supported 1.21.8OptimizationLightweightMultiplayer
Latest version
0.4.3M
Minecraft
1.7.10 to 1.21.8
Java
Java 21+
Loaders
Fabric, NeoForge, Forge
Licence
LicenseRef-WTFPL
Downloads
3.7k
Updated
8 mo ago
Available on
Modrinth
Space NodePartner

Host XtremePack servers

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

  • 1.21.8
  • Fabric
  • NeoForge
  • Forge
  • One click modpack install
  • Dependencies handled
  • Tuned startup flags
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Minecraft versions

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

Other modpacks
MinecraftThroughJavaEvidenceReleased
1.21.8Fabric, NeoForge, Forge21+declared17 Jul 2025
1.21.1NeoForge, Forge, Fabric21+declared8 Aug 2024
1.20.1Forge, Fabric, NeoForge17+declared12 Jun 2023
1.19.2Forge, Fabric, NeoForge17+declared5 Aug 2022
1.18.2NeoForge, Forge, Fabric17+declared28 Feb 2022
1.12.2Fabric, NeoForge, Forge8+declared18 Sept 2017
1.7.10Forge, NeoForge, Fabric8+declared14 May 2014

Download

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

0.4.3Mrelease23 Nov 2025

Flawless Optimized Mobile 0.4.3M.mrpack · 0.8 MB · for 1.21.1

Download latest
a2958d96b3ca…
Older versions13
  • 0.4.4M22 Nov 20251.21.80.0 MB82 downloadsbbde3f76d0f4…Get
  • 0.1.21.8a_EOL22 Nov 20251.21.80.0 MB98 downloads7deb31af635c…Get
  • 0.4.35 Nov 20241.21.10.0 MB700 downloads9e9df2c1624d…Get
  • 0.4.24 Nov 20241.21.10.0 MB75 downloadsc1f7fb04635a…Get
  • 0.4.1b30 Sept 20241.21.10.0 MB92 downloads56cf07fcd98f…Get
  • 0.4a21 Sept 20241.21.10.0 MB78 downloadsebbc8e7b9bf3…Get
  • 0.0.7.1b20 Sept 20241.7.100.0 MB409 downloadsb773fc32d4d9…Get
  • 0.0.12.1b19 Sept 20241.12.21.1 MB599 downloadsc938cacac469…Get
  • 0.0.7a18 Sept 20241.7.100.0 MB108 downloadsd2eff53d7a1d…Get
  • 0.0.12a18 Sept 20241.12.21.1 MB171 downloads3bfcad9e2519…Get
  • 0.3a16 Sept 20241.20.10.1 MB495 downloads0094ceacb5db…Get
  • 0.2a16 Sept 20241.19.20.1 MB189 downloads56442b5038cf…Get
  • 0.1a16 Sept 20241.18.20.1 MB180 downloadsee079582eed9…Get

Frequently asked

Does XtremePack work on Minecraft 1.21.8?

Yes. 1.21.8 is the newest Minecraft version XtremePack 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 XtremePack support?

Everything the author has declared, from 1.7.10 up to 1.21.8. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install XtremePack on the client or the server?

The client only. There is nothing to install on the server, so it works on any server you can already join.

Which loader does XtremePack need?

Fabric, 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 XtremePack?

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 modpack itself.

What licence is XtremePack under?

LicenseRef-WTFPL, 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 XtremePack?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the modpack 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 XtremePack 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.

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.Photon OptimizationMinecraft optimization framework prioritizing performance, simplicity, and compatibility. 1.7.10-26.1.2 across Fabric, Forge, NeoForge, and Quilt!ElixirA well-researched performance & optimization modpack to make the game run smoother! With shader & Fresh Animations support. 26.3 Snapshot 5 ✔

Last checked 6 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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