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modpack

Ultimately OptimizedMinecraft modpack for 1.21.7

Enjoy the plain old vanilla Minecraft, but with performance and FPS improvements.

client onlynewest supported 1.21.7TechnologyOptimizationMagicLightweight
Latest version
1.2.1
Minecraft
1.7.10 to 1.21.7
Java
Java 21+
Loaders
Fabric, NeoForge, Quilt, Forge
Licence
LicenseRef-All-Rights-Reserved
Downloads
13.6k
Updated
14 mo ago
Available on
Modrinth

Minecraft versions

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

Other modpacks
MinecraftThroughJavaEvidenceReleased
1.21.7Fabric, NeoForge, Quilt, Forge21+declared30 Jun 2025
1.21.6Forge, Quilt, NeoForge, Fabric21+declared17 Jun 2025
1.21.5Forge, Quilt, NeoForge, Fabric21+declared25 Mar 2025
1.21.4Forge, Quilt, NeoForge, Fabric21+declared3 Dec 2024
1.21.3NeoForge, Quilt, Forge, Fabric21+declared23 Oct 2024
1.21.1Fabric, Quilt, NeoForge, Forge21+declared8 Aug 2024
1.21Forge, Quilt, NeoForge, Fabric21+declared13 Jun 2024
1.20.6Forge, Quilt, NeoForge, Fabric21+declared29 Apr 2024
1.20.4NeoForge, Quilt, Fabric, Forge17+declared7 Dec 2023
1.20.2NeoForge, Fabric, Forge, Quilt17+declared20 Sept 2023
1.20.1Fabric, Quilt, NeoForge, Forge17+declared12 Jun 2023
1.19.4Forge, Quilt, NeoForge, Fabric17+declared14 Mar 2023
1.19.2Forge, Quilt, NeoForge, Fabric17+declared5 Aug 2022
1.18.2Forge, Quilt, NeoForge, Fabric17+declared28 Feb 2022
1.17.1Forge, Quilt, NeoForge, Fabric16+declared6 Jul 2021
1.16.5Forge, Quilt, NeoForge, Fabric8+declared14 Jan 2021
1.12.2Forge, Quilt, NeoForge, Fabric8+declared18 Sept 2017
1.8.9Forge, Quilt, NeoForge, Fabric8+declared3 Dec 2015
1.7.10Forge, Quilt, NeoForge, Fabric8+declared14 May 2014

Download

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

1.2.1release9 Jul 2025

Ultimately Optimized 1.2.1.mrpack · 0.0 MB · for 1.21.7

Download latest
74621e7e1aec…
Older versions7
  • 1.1.02 Jun 20251.21.50.0 MB480 downloadsf42de5bd6ce0…Get
  • 1.0.32 Jun 20251.21.40.0 MB402 downloadsead0d44fc029…Get
  • 1.0.27 Mar 20251.21.40.0 MB153 downloads6ee93400e089…Get
  • 1.0.116 Jan 20251.20.10.0 MB111 downloadsb061c7435dbe…Get
  • 1.0.030 Dec 20241.21.40.0 MB55 downloads4607fb9fa739…Get
  • 0.0.52 Sept 20241.20.10.0 MB85 downloadsfbad89e730ec…Get
  • 0.0.411 Jun 20241.20.40.0 MB150 downloadsef48738dfdbf…Get

Frequently asked

Does Ultimately Optimized work on Minecraft 1.21.7?

Yes. 1.21.7 is the newest Minecraft version Ultimately 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 Ultimately Optimized support?

Everything the author has declared, from 1.7.10 up to 1.21.7. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Ultimately 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 Ultimately Optimized support?

Fabric, NeoForge, Quilt, 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 Ultimately Optimized?

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 Ultimately 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 Ultimately 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 Ultimately 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. 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.

MAX FPS: Optimized🚀 MAX FPS WITHOUT UNNECESSARY MODS! Only 16 optimization mods - NOTHING EXTRA! ✅ ALL MAJOR VERSIONS ⚡ INSTALLS ON ANY LAUNCHER! (Guide below)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 ✔fps+pvpFPS + PvP Boost is a lightweight Minecraft modpack designed to maximize performance and give players a competitive edge in PvP. With FPS-boosting optimizations and combat-focused tweaks, it delivers smoother gameplay, better responsiveness, and enhanced viPhoton OptimizationMinecraft optimization framework prioritizing performance, simplicity, and compatibility. 1.7.10-26.1.2 across Fabric, Forge, NeoForge, and Quilt!Just Enough OptimizationJust Enough Optimization - Focused on low memory usage and higher avarege fps. Made for low-end pc so everyone can run Minecraft

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.

Not indexed yet. Score 53 against a threshold of 55. The page still exists and is still linked; it simply carries noindex until we hold more.

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