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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
13 mo ago
Available on
Modrinth
Space NodePartner

Host Ultimately Optimized servers

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

  • 1.21.7
  • Fabric
  • NeoForge
  • Quilt
  • Forge
  • One click modpack install
  • Dependencies handled
  • Tuned startup flags
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

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, so it works on any server you can already join.

Which loader does Ultimately Optimized need?

Fabric, NeoForge, Quilt, 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 Ultimately Optimized?

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 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?

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 Ultimately Optimized 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.

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.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 ✔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 viJust 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 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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