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modpack

OptimisticMCMinecraft modpack for 26.3

This mod collection will allow you to play Minecraft with higher FPS, if you have a very weak computer you should download it. Even if you have a powerful enough PC you should also try my collection.

Latest version
26.3v6
Loader
Fabric
Licence
LicenseRef-All-Rights-Reserved
Downloads
10.1k
Updated
14 d ago
Available on
Modrinth
Space NodeOur hosting

Host OptimisticMC servers

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

  • 26.3
  • Fabric
  • One click modpack install
  • Dependencies handled
  • Tuned startup flags
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Screenshots

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

Minecraft versions

Every version OptimisticMC 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
1.20.6Fabric21+declared29 Apr 2024
1.20.5Fabric21+declared23 Apr 2024
1.20.4Fabric17+declared7 Dec 2023
1.20.3Fabric17+declared4 Dec 2023
1.20.2Fabric17+declared20 Sept 2023
1.20.1Fabric17+declared12 Jun 2023
1.20Fabric17+declared2 Jun 2023
1.19.4Fabric17+declared14 Mar 2023
1.19.3Fabric17+declared7 Dec 2022
1.19.2Fabric17+declared5 Aug 2022
1.19.1Fabric17+declared27 Jul 2022
1.19Fabric17+declared7 Jun 2022
1.18.2Fabric17+declared28 Feb 2022
1.18.1Fabric17+declared10 Dec 2021
1.18Fabric17+declared30 Nov 2021
1.17.1Fabric16+declared6 Jul 2021
1.17Fabric16+declared8 Jun 2021
1.16.5Fabric8+declared14 Jan 2021

Download

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

Browse 67 indexed releases

Most recently published release

26.3v6release24 Oct 2026

OptimisticMC 26.3v6.mrpack · 25 KB · for 26.3 · Fabric

Download this release
6978f04b73f5…
Older versions24
  • 1.16.5v224 Oct 20261.16.512 KB21913ee7c6f6…Get
  • 26.3v511 Oct 202626.312.7 MBace3bf824ce1…Get
  • 26.3v420 Sept 202626.30.7 MB1affc648c898…Get
  • 26.2v220 Sept 202626.214 KB9572cefe1978…Get
  • 26.3v319 Sept 202626.30.7 MB7c7652e97e99…Get
  • 26.3v218 Sept 202626.30.7 MB07b901d28266…Get
  • 26.3v116 Sept 202626.312 KB39438567be4a…Get
  • 26.2v12 Jul 202626.214 KB104 downloads3c62508d49df…Get
  • 26.1.2v228 Apr 202626.1.219 KB14 downloadse90c757f28da…Get
  • 1.17.1v128 Apr 20261.17.111 KB19 downloads58216f6b190b…Get
  • 1.17v128 Apr 20261.1711 KB45 downloads48c013a487c0…Get
  • 1.18v121 Apr 20261.188 KB41 downloads95e54191e416…Get
  • 1.18.1v121 Apr 20261.18.110 KB13 downloads2a2271c5a89d…Get
  • 1.19v120 Apr 20261.1914 KB14 downloadsd06e89a6693c…Get
  • 26.1.2v120 Apr 202626.1.219 KB20 downloadse8d03d510773…Get
  • 26.1.1v18 Apr 202626.1.116 KB33 downloads7f7409077808…Get
  • 26.1v28 Apr 202626.118 KB33 downloadsb1ba266350de…Get
  • 26.1v131 Mar 202626.118 KB55 downloadsd7f9284d954e…Get
  • 1.21.11v231 Mar 20261.21.1118 KB110 downloads7e967c6ebcc6…Get
  • 1.21.11v112 Dec 20251.21.1112 KB853 downloads553caba6af98…Get
  • 1.19.1v17 Dec 20251.19.114 KB47 downloads53c52a19a43e…Get
  • 1.19.2v26 Dec 20251.19.232 KB27 downloads8257dc74d5fb…Get
  • 1.19.3v26 Dec 20251.19.315 KB22 downloads68288cebb2da…Get
  • 1.19.4v26 Dec 20251.19.445 KB21 downloadsfbb1339699c4…Get

Frequently asked

Does OptimisticMC work on Minecraft 26.3?

Yes. 26.3 is the newest Minecraft version OptimisticMC 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 OptimisticMC support?

Everything the author has declared, from 1.16.5 up to 26.3. The full list is in the table above, with the Java runtime each version needs next to it.

Which platform or loader does OptimisticMC 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 OptimisticMC?

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 OptimisticMC 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 OptimisticMC?

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 OptimisticMC 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 24 Oct 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? .