Menu

modpack

Core OptimizedMinecraft modpack for 26.3

Core Optimized is modpack designed to focus on Vanilla world exploration with Performance improvement modes and few QoL mods. It does not contain any big game-changing modes.

client onlynewest supported release 26.3OptimizationLightweightMultiplayer
Latest version
13.0.0-beta.2
Minecraft
1.21 to 26.3
Java
Java 25+
Loader
Fabric
Licence
MIT
Downloads
7.7k
Updated
2 d ago
Available on
Modrinth

Screenshots

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

Minecraft versions

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

Other modpacks
MinecraftThroughJavaEvidenceReleased
26.3Fabric25+declared15 Sept 2026
26.2Fabric25+declared16 Jun 2026
26.1.2Fabric25+declared9 Apr 2026
26.1.1Fabric25+declared1 Apr 2026
26.1Fabric25+declared24 Mar 2026
1.21.11Fabric21+declared9 Dec 2025
1.21.10Fabric21+declared7 Oct 2025
1.21.9Fabric21+declared30 Sept 2025
1.21.8Fabric21+declared17 Jul 2025
1.21.7Fabric21+declared30 Jun 2025
1.21.6Fabric21+declared17 Jun 2025
1.21.5Fabric21+declared25 Mar 2025
1.21.4Fabric21+declared3 Dec 2024
1.21.3Fabric21+declared23 Oct 2024
1.21.2Fabric21+declared22 Oct 2024
1.21.1Fabric21+declared8 Aug 2024
1.21Fabric21+declared13 Jun 2024

Download

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

Browse 69 indexed releases

Most recently published release

13.0.0-beta.2beta26 Oct 2026

CoreOptimized-13.0.0-beta.2.mrpack · 20 KB · for 26.3 · Fabric

Download this release
1e02fa4f2fbe…
Older versions24
  • 13.0.0-beta.117 Oct 202626.320 KBf4b7bd64375d…Get
  • 13.0.0-alpha.28 Oct 202626.320 KB4e54adb02663…Get
  • 13.0.0-alpha.130 Sept 202626.320 KB65691db10020…Get
  • 12.0.213 Sept 202626.220 KB5c8ef3e5a264…Get
  • 12.0.12 Sept 202626.220 KB08934b116466…Get
  • 11.2.22 Sept 202626.1.220 KB663d4b636d90…Get
  • 12.0.0-beta.329 Aug 202626.220 KBc9c679f5ee5c…Get
  • 12.0.0-beta.228 Aug 202626.220 KB1e740365963f…Get
  • 12.0.0-beta.118 Jul 202626.219 KB20 downloadsce57f263040d…Get
  • 12.0.0-alpha.29 Jul 202626.219 KB11 downloads4f4b06e208e5…Get
  • 12.0.0-alpha.129 Jun 202626.219 KB15 downloads2aef860d136b…Get
  • 11.2.121 Jun 202626.1.219 KB21 downloads6eecfb525193…Get
  • 11.2.0-beta.46 Jun 202626.1.219 KB21 downloads4cbf03a1f14f…Get
  • 11.2.0-beta.315 May 202626.1.219 KB26 downloads38dcf078e30b…Get
  • 11.2.0-beta.27 May 202626.1.219 KB34 downloads200caa803980…Get
  • 1.8.67 May 20261.21.1119 KB32 downloads153578957fe2…Get
  • 11.2.0-beta.12 May 202626.1.219 KB13 downloads0369395966e4…Get
  • 11.2.0-alpha.221 Apr 202626.1.219 KB20 downloads99792447d153…Get
  • 11.2.0-alpha.114 Apr 202626.1.219 KB16 downloads46075f25e039…Get
  • 11.1.0-alpha.212 Apr 202626.1.118 KB17 downloadsd6903b8c9996…Get
  • 11.1.0-alpha.17 Apr 202626.1.117 KB17 downloads02c4495ffa91…Get
  • 11.0.0-alpha.22 Apr 202626.118 KB24 downloads0ae90fe40fc3…Get
  • 11.0.0-alpha.11 Apr 202626.117 KB16 downloads1beef3e2f580…Get
  • 1.8.513 Mar 20261.21.1119 KB37 downloads9275309f19ce…Get

Frequently asked

Does Core Optimized work on Minecraft 26.3?

Yes. 26.3 is the newest Minecraft version Core 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 Core Optimized support?

Everything the author has declared, from 1.21 up to 26.3. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Core 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 Core Optimized support?

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 Core Optimized?

Among the supported Minecraft releases above, the highest recorded requirement is Java 25 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.

What licence is Core Optimized 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 Core 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 Core 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.

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.FPS+ PvP Boost | Ultimate FPS & Combat Client [ Every Version ]Ultra-lightweight FPS boost & PvP modpack for Fabric. Boost FPS on low-end PCs with Sodium optimizations, lower input lag, cleaner visuals, and combat HUD tweaks built for Hypixel Bedwars, Duels, PotPvP & CPVP. Maximize frames and dominate fights.ElixirA well-researched performance & optimization modpack to make the game run smoother! With shader & Fresh Animations support. 26.3 ✔Fastly OptimisedA modpack to enhance the performance of Pojavlauncher, MojoLauncher, Amethyst Launcher, Pojav Zenith Horizon (Zalith Launcher), Zalith Launcher2, Hello Launcher, FoldCraft Launcher, SolCraft Launcher and Low-End-PCs.Uton OptimizatorEffective optimization for weak PCs and even for mobile devices.

Details from Modrinth, where the author last updated it on 6 Nov 2026. We do not host files or republish descriptions. Available download links point to the author’s own release.

Is this information wrong or missing something? .