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Project Red TransmissionMinecraft mod for 1.21.1

A collection of mods that aim to vastly improved Redstone circuitry with wiring, logic gates, integrated circuits, and more. Heavily inspired by Red Power by Eloraam.

client and servernewest supported release 1.21.1TechnologyUtilityGame Mechanics
Latest version
4.23.0
Minecraft
1.19.2 to 1.21.1
Java
Java 21+
Loaders
Forge, NeoForge
Licence
MIT
Downloads
64.3k
Updated
4 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Project Red Transmission servers

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

  • 1.21.1
  • Forge
  • NeoForge
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Minecraft versions

Every version Project Red Transmission declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1Forge, NeoForge21+declared8 Aug 2024
1.20.4Forge, NeoForge17+declared7 Dec 2023
1.20.1Forge, NeoForge17+declared12 Jun 2023
1.19.2Forge, NeoForge17+declared5 Aug 2022

Download

From Project Red Transmission’s own host. Nothing is re-hosted here.

Most recently published release

4.23.0release25 Jul 2026

ProjectRed-1.21.1-4.23.0-transmission.jar · 0.5 MB · for 1.21.1 · NeoForge

Download this release
e5911856eb2e…
Older versions18
  • 4.23.0-beta+815 Jul 20261.21.10.5 MB534 downloads0ef0c6ef5d75…Get
  • 4.22.07 Apr 20261.21.10.5 MB8.3k downloadsc0cc5af39726…Get
  • 4.22.0-beta+393 Apr 20261.21.10.5 MB255 downloadsbb8d0771df68…Get
  • 4.22.0-beta+3731 Mar 20261.21.10.5 MB533 downloads0a0787dd4de0…Get
  • 4.22.0-beta+335 Dec 20251.21.10.5 MB3.4k downloads214af01272bb…Get
  • 4.22.0-beta+292 Dec 20251.21.10.5 MB160 downloads14586f7a0e6d…Get
  • 4.22.0-beta+2430 Nov 20251.21.10.5 MB111 downloadsb7ecccc19980…Get
  • 4.22.0-beta+2129 Nov 20251.21.10.5 MB81 downloadsdacc48f64e84…Get
  • 4.22.0-beta+1411 Nov 20251.21.10.5 MB710 downloadsd4c2999a86c8…Get
  • 4.22.0-alpha+1114 Aug 20251.21.10.5 MB2.1k downloadse62ddcab3f22…Get
  • 4.22.0-beta+710 Aug 20251.20.40.4 MB72 downloads0c2ca181656d…Get
  • 4.21.09 Aug 20251.20.10.4 MB201 downloads5540697dab54…Choose file on publisher ↗
  • 4.21.0-beta+119 Feb 20251.20.40.4 MB82 downloads21b385743399…Get
  • 4.21.0-alpha+826 Jan 20251.20.40.4 MB65 downloads8e1dce084d72…Get
  • 4.19.0-beta+3326 Jan 20251.19.20.4 MB665 downloads22fc06c65b4d…Choose file on publisher ↗
  • 4.20.1-beta+420 Jan 20251.20.10.4 MB3.3k downloadsf46fad1dda60…Choose file on publisher ↗
  • 4.20.031 Dec 20241.20.10.4 MB1.2k downloadsd19f41dca7b0…Choose file on publisher ↗
  • 4.20.0-beta+1627 Dec 20241.20.10.4 MB116 downloads0582a925f4be…Choose file on publisher ↗

Frequently asked

Does Project Red Transmission work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Project Red Transmission 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 Project Red Transmission support?

Everything the author has declared, from 1.19.2 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Project Red Transmission on the client or the server?

Both. Every player needs it installed and so does the server, so anyone joining without it will be refused.

Which platform or loader does Project Red Transmission support?

Forge, NeoForge. 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 Project Red Transmission?

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 Project Red Transmission 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 Project Red Transmission?

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 Project Red Transmission 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.

GeckoLibA 3D animation library for entities, blocks, items, armor, and more!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.

Details from Modrinth, where the author last updated it on 25 Jul 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? .