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[IU] Industrial UpgradeMinecraft mod for 1.21.1

Industrial Upgrade is the spiritual successor to Industrial Craft

client and servernewest supported release 1.21.1TechnologyEquipmentGame MechanicsStorage
Latest version
3.4.0.11
Minecraft
1.12.2 to 1.21.1
Java
Java 21+
Loaders
NeoForge, Forge
Licence
GPL-3.0-only
Downloads
48.9k
Updated
4 mo ago
Available on
Modrinth
Space NodeOur hosting

Host [IU] Industrial Upgrade servers

One click and [IU] Industrial Upgrade is installed with the right loader, on hardware built for it.

  • 1.21.1
  • NeoForge
  • Forge
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • 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 [IU] Industrial Upgrade declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge, Forge21+declared8 Aug 2024
1.21Forge, NeoForge21+declared13 Jun 2024
1.20.1NeoForge, Forge17+declared12 Jun 2023
1.19.2NeoForge, Forge17+declared5 Aug 2022
1.12.2Forge, NeoForge8+declared18 Sept 2017

Download

From [IU] Industrial Upgrade’s own host. Nothing is re-hosted here.

For Minecraft 1.21.1

Choose the loader you use before downloading.

  • NeoForge

    3.4.0.9 · 5 Jul 2026 · IndustrialUpgrade-1.21.1-3.4.0.9.jar

    Get NeoForge

Most recently published release

3.4.0.11release12 Jul 2026

IndustrialUpgrade-1.19.2-3.4.0.11.jar · 35.2 MB · for 1.19.2 · Forge

Download this release
a733438d25c2…
Older versions24
  • 3.4.0.95 Jul 20261.21.135.0 MB28 downloadsb41db5560011…Get
  • 3.4.0.46 Jun 20261.19.235.1 MB54 downloadseb03be61e9c8…Get
  • 3.427 May 20261.19.235.1 MB1.4k downloads79fadcc5113b…Get
  • 3.3.2.3212 Jan 20261.21.127.6 MB464 downloads6e3d56418cc0…Get
  • 3.3.2.3111 Jan 20261.21.127.6 MB81 downloads9b3175b42b3f…Get
  • 3.3.2.3011 Jan 20261.20.128.1 MB56 downloads9cc5f7504ee9…Choose file on publisher ↗
  • 3.3.2.293 Jan 20261.20.128.1 MB26 downloadsd6de51e87bf2…Choose file on publisher ↗
  • 3.3.2.2831 Dec 20251.20.128.1 MB122 downloadsfde367b5d63d…Choose file on publisher ↗
  • 3.3.2.2730 Dec 20251.20.128.1 MB656 downloads781112e78b23…Choose file on publisher ↗
  • 3.3.2.2614 Dec 20251.20.128.1 MB114 downloads077dbf7c7682…Choose file on publisher ↗
  • 3.3.2.244 Dec 20251.20.127.9 MB169 downloads02c8e72450e1…Choose file on publisher ↗
  • 3.3.2.254 Dec 20251.21.127.4 MB55 downloadsa52c29af9243…Get
  • 3.3.2.2330 Nov 20251.20.127.9 MB216 downloadse0a0f3f737b3…Choose file on publisher ↗
  • 3.3.2.1610 Nov 20251.21.126.8 MB101 downloadsda6de3805a95…Get
  • 3.3.2.1410 Nov 20251.20.127.3 MB1.1k downloads1f0c297f382e…Choose file on publisher ↗
  • 3.3.2.714 Sept 20251.21.126.8 MB2.2k downloadsf92b57f69047…Get
  • 3.3.2.814 Sept 20251.19.225.6 MB215 downloads2b716a992c75…Get
  • 3.3.1.1519 Aug 20251.19.225.5 MB711 downloadsa090a2481dfe…Get
  • 3.3.1.1419 Aug 20251.21.126.6 MB28 downloadse9559f86e8e3…Get
  • 3.3.1.1315 Aug 20251.19.225.5 MB207 downloadsfde718a00bac…Get
  • 3.3.1.1214 Aug 20251.21.126.6 MB28 downloads6a931edd2077…Get
  • 3.3.1.1113 Aug 20251.19.225.5 MB112 downloads05d7badc6221…Get
  • 3.3.1.109 Aug 20251.21.126.6 MB38 downloads2e27951a08c0…Get
  • 3.3.1.98 Aug 20251.19.225.3 MB202 downloads11d13daf832e…Get

Frequently asked

Does [IU] Industrial Upgrade work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version [IU] Industrial Upgrade 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 [IU] Industrial Upgrade support?

Everything the author has declared, from 1.12.2 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 [IU] Industrial Upgrade 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 [IU] Industrial Upgrade 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 [IU] Industrial Upgrade?

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 [IU] Industrial Upgrade 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 [IU] Industrial Upgrade?

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 [IU] Industrial Upgrade 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 12 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? .