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Poly+ (PolyPlus)Minecraft mod for 26.3

The best world hosting and friends mod. By Polyfrost, best with OneClient.

client onlynewest supported release 26.3Utility
Latest version
v1.3.15
Minecraft
1.8.9 to 26.3
Java
Java 25+
Loader
Fabric
Licence
GPL-3.0-only
Downloads
670.6k
Updated
1 d ago
Available on
Modrinth

Minecraft versions

Every version Poly+ (PolyPlus) declares support for, newest first, with the Java runtime that version needs.

Other mods
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
1.21.8Fabric21+declared17 Jul 2025
1.21.5Fabric21+declared25 Mar 2025
1.21.4Fabric21+declared3 Dec 2024
1.21.1Fabric21+declared8 Aug 2024
1.8.9Fabric8+declared3 Dec 2015

Download

From Poly+ (PolyPlus)’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

v1.3.15release26 Oct 2026

polyplus-1.3.15+1.21.1.jar · 54.4 MB · for 1.21.1 · Fabric

Download this release
474c38e8b6eb…
Older versions19
  • v1.3.1425 Oct 20261.8.953.9 MBeb94248ef40c…Get
  • v1.3.1324 Oct 20261.21.453.7 MBc6eb649cdfae…Get
  • v1.3.1223 Oct 20261.8.953.9 MBd29d8441acbf…Get
  • v1.3.1017 Oct 20261.8.952.9 MB66976dac197f…Get
  • v1.3.916 Oct 20261.8.952.9 MB239da7027837…Get
  • v1.3.815 Oct 20261.8.952.9 MB211b2f9df4ee…Get
  • v1.3.715 Oct 20261.21.1052.7 MB7c75dee35fad…Get
  • v1.2.5911 Oct 20261.21.452.1 MB1c19b6b00e22…Get
  • v1.2.5811 Oct 20261.21.152.1 MB006b8292ff54…Get
  • v1.2.576 Oct 20261.21.1152.1 MB088a7c4aee34…Get
  • v1.2.556 Oct 20261.21.552.1 MBac7e1f806e3b…Get
  • v1.1.1131 Jul 20261.21.1111.8 MB864 downloads9ed99709c2aa…Get
  • v1.1.1031 Jul 20261.21.411.8 MB1 download816b5df34be4…Get
  • v1.1.931 Jul 20261.21.1111.7 MB1.4k downloadsdeb11fea1764…Get
  • v1.1.729 Jul 20261.21.811.6 MB1.9k downloads3f8b94405a2c…Get
  • v1.1.628 Jul 20261.21.1111.6 MB581 downloads088c83432c12…Get
  • v1.1.528 Jul 20261.21.111.6 MB337 downloads822881db9327…Get
  • v1.1.425 Jul 20261.21.411.5 MB125 downloadsf6d7965e1e0d…Get
  • v1.1.324 Jul 202626.211.4 MB2 downloads150575859022…Get

Dependencies

What Poly+ (PolyPlus)declares it needs, from the author’s own release metadata. A required one has to be installed alongside it or it will not load.

Fabric Language KotlinRequired. This is a mod that enables usage of the Kotlin programming language for Fabric mods.OneConfigRequired. Access all your mod settings in one place, with a sleek and intuitive interface. By Polyfrost, best with OneClient.

Frequently asked

Does Poly+ (PolyPlus) work on Minecraft 26.3?

Yes. 26.3 is the newest Minecraft version Poly+ (PolyPlus) 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 Poly+ (PolyPlus) support?

Everything the author has declared, from 1.8.9 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 Poly+ (PolyPlus) 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 Poly+ (PolyPlus) 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 Poly+ (PolyPlus)?

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 does Poly+ (PolyPlus) need to run?

It declares Fabric Language Kotlin and OneConfig as required, so those have to be installed alongside it or it will not load. Each one is linked in the dependencies section above.

What licence is Poly+ (PolyPlus) under?

GPL-3.0-only, 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 Poly+ (PolyPlus)?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod 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 Poly+ (PolyPlus) 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.

BookshelfAn open source library for other mods!Cloth Config API (Fabric/Forge/NeoForge)Config Screen API for MinecraftJourneyMapReal-time map used for mapping in-game or your browser as you explore.Architectury APIAn intermediary api aimed to ease developing multiplatform mods.Enchantment DescriptionsAdds in-game descriptions for enchantments to tooltips.Jade 🔍Shows information about what you are looking at. (Hwyla/WAILA fork for Minecraft 1.16+)

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? .