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Project Red - CoreMinecraft mod for 1.21.1

Core module for the Project Red series

newest supported release 1.21.1Library ApiTechnology AutomationRedstone
Latest version
ProjectRed-1.21.1-4.23.0-beta+8-core.jar
Minecraft
1.7.10 to 1.21.1
Java
Java 21+
Loaders
NeoForge, Forge
Licence
not stated
Downloads
48.0M
Updated
4 mo ago
Available on
CurseForge

Minecraft versions

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

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge, Forge21+declared8 Aug 2024
1.20.4NeoForge, Forge17+declared7 Dec 2023
1.20.1NeoForge, Forge17+declared12 Jun 2023
1.19.2NeoForge, Forge17+declared5 Aug 2022
1.18.2NeoForge, Forge17+declared28 Feb 2022
1.16.5NeoForge, Forge8+declared14 Jan 2021
1.15.2NeoForge, Forge8+declared17 Jan 2020
1.12.2NeoForge, Forge8+declared18 Sept 2017
1.11.2NeoForge, Forge8+declared21 Dec 2016
1.10.2NeoForge, Forge8+declared23 Jun 2016
1.7.10NeoForge, Forge8+declared14 May 2014

Download

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

Browse 39 indexed releases

Most recently published release

ProjectRed-1.21.1-4.23.0-beta+8-core.jarbeta15 Jul 2026

ProjectRed-1.21.1-4.23.0-beta+8-core.jar · 0.7 MB · for 1.21.1 · NeoForge

Download this release
eb8e62b7a306…
Older versions24
  • ProjectRed-1.21.1-4.22.0-core.jar7 Apr 20261.21.10.7 MB26.0k downloads9833022e8ab8…Get
  • ProjectRed-1.21.1-4.22.0-beta+39-core.jar3 Apr 20261.21.10.7 MB1d702cd6c616…Get
  • ProjectRed-1.21.1-4.22.0-beta+37-core.jar31 Mar 20261.21.10.7 MBaa79a9f84560…Get
  • ProjectRed-1.21.1-4.22.0-beta+33-core.jar5 Dec 20251.21.10.7 MB399271896376…Get
  • ProjectRed-1.21.1-4.22.0-beta+29-core.jar2 Dec 20251.21.10.7 MB084e154d6151…Get
  • ProjectRed-1.21.1-4.22.0-beta+24-core.jar30 Nov 20251.21.10.7 MBa1e6a4411eaa…Get
  • ProjectRed-1.21.1-4.22.0-beta+21-core.jar29 Nov 20251.21.10.7 MB1 download45213b0a0497…Get
  • ProjectRed-1.21.1-4.22.0-beta+14-core.jar11 Nov 20251.21.10.7 MB5cdf4fcea16c…Get
  • ProjectRed-1.21.1-4.22.0-alpha+11-core.jar14 Aug 20251.21.10.7 MB3 downloads908b71cfc6b3…Get
  • ProjectRed-1.20.4-4.22.0-beta+7-core.jar10 Aug 20251.20.40.8 MB9 downloads7915f6f51b3b…Get
  • ProjectRed-1.20.1-4.21.0-core.jar9 Aug 20251.20.10.8 MB312.7k downloads3c7a62527958…Choose file on publisher ↗
  • ProjectRed-1.20.4-4.21.0-core.jar22 Mar 20251.20.40.8 MB89 downloads070dbe09a610…Get
  • ProjectRed-1.20.4-4.21.0-beta+11-core.jar9 Feb 20251.20.40.8 MB132 downloads4fc3f27272ab…Get
  • ProjectRed-1.20.4-4.21.0-alpha+8-core.jar26 Jan 20251.20.40.8 MB53 downloads31ee93037e06…Get
  • ProjectRed-1.19.2-4.19.0-beta+33-core.jar26 Jan 20251.19.20.8 MB750 downloads4e31306e69db…Choose file on publisher ↗
  • ProjectRed-1.20.1-4.20.1-beta+4-core.jar20 Jan 20251.20.10.8 MB42.8k downloadsd7c5190e1729…Choose file on publisher ↗
  • ProjectRed-1.20.1-4.20.0-core.jar31 Dec 20241.20.10.8 MB62.3k downloads5d511b15b3b1…Choose file on publisher ↗
  • ProjectRed-1.20.1-4.20.0-beta+16-core.jar27 Dec 20241.20.10.8 MB457 downloads4c8ffa655331…Choose file on publisher ↗
  • ProjectRed-1.20.1-4.20.0-beta+5-core.jar11 Sept 20241.20.10.8 MB17.2k downloads5b20bcdb6b86…Get
  • ProjectRed-1.20.1-4.20.0-beta+4-core.jar4 Sept 20241.20.10.8 MB1.6k downloads8b3de43f7ab0…Get
  • ProjectRed-1.20.1-4.19.0-core.jar10 Aug 20241.20.10.8 MB66.1k downloadsb9b5c5c170a4…Get
  • ProjectRed-1.20.1-4.19.0-beta+16-core.jar5 Aug 20241.20.10.8 MB1.7k downloadsecb929694408…Get
  • ProjectRed-1.20.1-4.19.0-beta+11-core.jar19 Jul 20241.20.10.8 MB5.7k downloads29be0a555246…Get
  • ProjectRed-1.20.1-4.19.0-beta+7-core.jar16 Jul 20241.20.10.8 MB874 downloadsaa811c94ebc1…Get

Frequently asked

Does Project Red - Core work on Minecraft 1.21.1?

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

Everything the author has declared, from 1.7.10 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.

Which platform or loader does Project Red - Core support?

NeoForge, Forge. 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 - Core?

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.

How do I install Project Red - Core?

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 - Core safely?

Start with the author's page on CurseForge, 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!GeckoLibA 3D animation library for entities, blocks, items, armor, and more!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 CurseForge, where the author last updated it on 15 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? .