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modpack

Helios OptimizeMinecraft modpack for 26.3

Helios is an #smartweight non-sodium performance modpack for Minecraft 1.21.8 that boosts FPS, no sodium used, reduces RAM usage, and improves smoothness on PC, laptops, and mobile devices. Compatible with PojavLauncher.

client onlynewest supported release 26.3TechnologyOptimizationLightweightMultiplayer
Latest version
0.05
Loaders
Forge, Fabric
Licence
CC-BY-4.0
Downloads
1.9k
Updated
13 d ago
Available on
Modrinth
Space NodeOur hosting

Host Helios Optimize servers

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

  • 26.3
  • Forge
  • 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 Helios Optimize declares support for, newest first, with the Java runtime that version needs.

Other modpacks
MinecraftThroughJavaEvidenceReleased
26.3Forge, Fabric25+declared15 Sept 2026
26.2Forge, Fabric25+declared16 Jun 2026
26.1.2Fabric, Forge25+declared9 Apr 2026
26.1.1Forge, Fabric25+declared1 Apr 2026
26.1Fabric, Forge25+declared24 Mar 2026
1.21.11Forge, Fabric21+declared9 Dec 2025
1.21.10Forge, Fabric21+declared7 Oct 2025
1.21.9Fabric, Forge21+declared30 Sept 2025
1.21.8Forge, Fabric21+declared17 Jul 2025
1.21.7Forge, Fabric21+declared30 Jun 2025
1.21.6Forge, Fabric21+declared17 Jun 2025
1.21.5Forge, Fabric21+declared25 Mar 2025
1.21.4Forge, Fabric21+declared3 Dec 2024
1.21.3Fabric, Forge21+declared23 Oct 2024
1.21.2Forge, Fabric21+declared22 Oct 2024
1.21.1Forge, Fabric21+declared8 Aug 2024
1.21Forge, Fabric21+declared13 Jun 2024
1.20.6Forge, Fabric21+declared29 Apr 2024
1.20.5Forge, Fabric21+declared23 Apr 2024
1.20.1Forge, Fabric17+declared12 Jun 2023
1.19.4Forge, Fabric17+declared14 Mar 2023

Download

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

For Minecraft 26.3

Choose the loader you use before downloading.

No matching file appears among the releases shown here. Browse all releases.

Most recently published release

0.05release13 Sept 2026

Helios 1.21.11.mrpack · 2.0 MB · for 1.21.11 · Fabric

Download this release
2d3dd88d9195…
Older versions5
  • 0.01-CRASH8 Jul 202626.22 KBbe7fb1bb19c7…Get
  • 0.018 Jul 202626.22 KB19 downloadsbe7fb1bb19c7…Get
  • 0.038 Jul 20261.21.93 KB5 downloads4a85893291b0…Get
  • 0.048 Jul 20261.21.83 KB37 downloadsdcf354ecd167…Get
  • 0.028 Jul 20261.21.73 KB7 downloadsceb07584061c…Get

Frequently asked

Does Helios Optimize work on Minecraft 26.3?

Yes. 26.3 is the newest Minecraft version Helios Optimize 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 Helios Optimize support?

Everything the author has declared, from 1.19.4 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 Helios Optimize 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 Helios Optimize support?

Forge, 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 Helios Optimize?

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 Helios Optimize under?

CC-BY-4.0, 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 Helios Optimize?

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 Helios Optimize 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 26 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? .