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modpack

CivOptimizedMinecraft modpack for 1.21.11

The essential modpack for CivMC. Better performance, graphics, and utilities.

client onlynewest supported 1.21.11OptimizationMultiplayer
Latest version
2.1.6
Minecraft
1.21.4 to 1.21.11
Java
Java 21+
Loader
Fabric
Licence
BSD-3-Clause
Downloads
1.6k
Updated
1 mo ago
Available on
Modrinth

Minecraft versions

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

Other modpacks
MinecraftThroughJavaEvidenceReleased
1.21.11Fabric21+declared9 Dec 2025
1.21.8Fabric21+declared17 Jul 2025
1.21.4Fabric21+declared3 Dec 2024

Download

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

All 45 releases
2.1.6release6 Jul 2026

CivOptimized 2.1.6.mrpack · 12.3 MB · for 1.21.11

Download latest
af398fd7cbf1…
Older versions24
  • 2.1.528 Jun 20261.21.1112.3 MB33 downloads44f6bcd7552e…Get
  • 2.1.418 Jun 20261.21.1112.1 MB30 downloadsd8e4790f99c9…Get
  • 2.1.313 Jun 20261.21.1112.1 MB13 downloadsb8a146d81387…Get
  • 2.1.21 Jun 20261.21.1112.1 MB22 downloads544308b643c7…Get
  • 2.1.121 May 20261.21.1112.1 MB20 downloadsd52e65594793…Get
  • 2.1.014 May 20261.21.1112.1 MB11 downloadsbaf8577f725c…Get
  • 2.0.47 May 20261.21.1112.1 MB17 downloads5cad764f0161…Get
  • 2.0.325 Apr 20261.21.1112.1 MB19 downloads2d3175649e33…Get
  • 2.0.217 Apr 20261.21.1112.1 MB14 downloads8125ae0cfcdc…Get
  • 2.0.18 Apr 20261.21.1112.1 MB15 downloads58233853f3f4…Get
  • 2.023 Mar 20261.21.1112.1 MB27 downloads3514f35b00e0…Get
  • 2.0-beta422 Mar 20261.21.1112.1 MB19 downloadsd5a3d8c4ed76…Get
  • 2.0-beta36 Mar 20261.21.1112.8 MB39 downloads34db26a70b67…Get
  • 2.0-beta223 Feb 20261.21.1112.2 MB48 downloads99b6da4f0c66…Get
  • 2.0-beta120 Feb 20261.21.1112.8 MB23 downloads168b897bb47b…Get
  • 1.1.161 Feb 20261.21.80.0 MB50 downloadsf9a7dfc373fa…Get
  • 1.1.1522 Dec 20251.21.80.0 MB69 downloads89eda85f8f2c…Get
  • 1.1.1410 Dec 20251.21.80.0 MB47 downloads5dd13a4c9bc9…Get
  • 1.1.136 Dec 20251.21.80.0 MB19 downloadsa740b70755f1…Get
  • 1.1.1227 Nov 20251.21.80.0 MB34 downloadsd71c3e540315…Get
  • 1.1.1117 Nov 20251.21.813.6 MB39 downloads3edb23eb2124…Get
  • 1.1.1012 Nov 20251.21.80.0 MB25 downloadsfde57b7d39fb…Get
  • 1.1.931 Oct 20251.21.80.0 MB30 downloads26ece53e9a41…Get
  • 1.1.831 Oct 20251.21.80.0 MB28 downloads9f1bbf53a07c…Get

Frequently asked

Does CivOptimized work on Minecraft 1.21.11?

Yes. 1.21.11 is the newest Minecraft version CivOptimized 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 CivOptimized support?

Everything the author has declared, from 1.21.4 up to 1.21.11. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install CivOptimized 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 CivOptimized 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 CivOptimized?

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 CivOptimized under?

BSD-3-Clause, 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 CivOptimized?

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 CivOptimized 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)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.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!

Last checked 23 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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