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Polydex2REIMinecraft mod for 1.21.11

An REI attachment, used for bridging Polymer to REI

newest supported release 1.21.11
Latest version
1.0.3
Minecraft
1.21.7 to 1.21.11
Java
Java 21+
Loader
Fabric
Licence
MIT
Downloads
2.6k
Updated
7 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Polydex2REI servers

One click and Polydex2REI is installed with the right loader, on hardware built for it.

  • 1.21.11
  • Fabric
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Minecraft versions

Every version Polydex2REI declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.11Fabric21+declared9 Dec 2025
1.21.10Fabric21+declared7 Oct 2025
1.21.8Fabric21+declared17 Jul 2025
1.21.7Fabric21+declared30 Jun 2025

Download

From Polydex2REI’s own host. Nothing is re-hosted here.

Most recently published release

1.0.3release17 Mar 2026

polydex2rei+1.21.11-1.0.3.jar · 1.7 MB · for 1.21.11 · Fabric

Download this release
916e901ccefb…
Older versions2
  • 1.0.225 Jan 20261.21.111.7 MB185 downloads209b93c49795…Get
  • 1.0.026 Aug 20251.21.8, 1.21.70.8 MB893 downloadsfa61f39c4e3b…Get

Frequently asked

Does Polydex2REI work on Minecraft 1.21.11?

Yes. 1.21.11 is the newest Minecraft version Polydex2REI 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 Polydex2REI support?

Everything the author has declared, from 1.21.7 up to 1.21.11. The full list is in the table above, with the Java runtime each version needs next to it.

Which platform or loader does Polydex2REI 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 Polydex2REI?

Among the supported Minecraft releases above, the highest recorded requirement is Java 21 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.

What licence is Polydex2REI 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 Polydex2REI?

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 Polydex2REI 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.

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Details from Modrinth, where the author last updated it on 17 Mar 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? .