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modpack

Quietly optimized Minecraft modpack for 1.21.8

One of the original performance modpacks of Modrinth. Pushing the limits of Minecraft.

client onlynewest supported release 1.21.8AdventureOptimizationCombatLightweight
Latest version
1.2
Loaders
Quilt, Fabric
Licence
LicenseRef-All-Rights-Reserved
Downloads
4.9k
Updated
13 mo ago
Available on
Modrinth

Minecraft versions

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

Other modpacks
MinecraftThroughJavaEvidenceReleased
1.21.8Quilt, Fabric21+declared17 Jul 2025
1.20.1Quilt, Fabric17+declared12 Jun 2023
1.19.4Fabric, Quilt17+declared14 Mar 2023
1.19.3Quilt, Fabric17+declared7 Dec 2022
1.19.2Quilt, Fabric17+declared5 Aug 2022
1.19.1Quilt, Fabric17+declared27 Jul 2022
1.19Fabric, Quilt17+declared7 Jun 2022

Download

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

Browse 41 indexed releases

Most recently published release

1.2release10 Sept 2025

Qo-1.2 1.2.mrpack · 47 KB · for 1.21.8 · Fabric

Download this release
132f62c9dcf6…
Older versions24

Frequently asked

Does Quietly optimized work on Minecraft 1.21.8?

Yes. 1.21.8 is the newest Minecraft version Quietly optimized 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 Quietly optimized support?

Everything the author has declared, from 1.19 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 Quietly optimized on the client or the server?

The client only. There is nothing to install on the server side. That is the author's declared design, not a guarantee for every server: one running anti-cheat or missing a counterpart mod can still object.

Which platform or loader does Quietly optimized support?

Quilt, Fabric. 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 Quietly optimized ?

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 Quietly optimized under?

LicenseRef-All-Rights-Reserved, 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 Quietly optimized ?

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 Quietly optimized 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.

Details from Modrinth, where the author last updated it on 13 Sept 2025. We do not host files or republish descriptions. Available download links point to the author’s own release.

Not indexed yet. Score 52 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? .