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Colossal ReactorsMinecraft mod

Build and run large multiblock nuclear reactors to generate power.

client and server
Latest version
2.2.2.0.1
Minecraft
no version declared
Java
follows the game
Loaders
none declared
Licence
MIT
Downloads
656
Updated
3 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Colossal Reactors servers

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

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

Download

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

Most recently published release

2.2.2.0.1release6 Jul 2026

colossal_reactors-2.2.2.0.1-neoforge-26.1.2.jar · 1.3 MB · for 26.1.2 · NeoForge

Download this release
b8b72d802759…
Older versions22
  • 2.3.2.0.06 Jul 20261.21.11.3 MB37 downloadse09e35fbbba7…Get
  • 2.3.1.0.05 Jul 20261.21.11.3 MB4 downloads7b56e1367e51…Get
  • 2.2.1.0.05 Jul 202626.1.21.3 MB4 downloads12f0991382ac…Get
  • 2.2.0.3.03 Jul 202626.1.21.3 MB7 downloads71ff55b87b04…Get
  • 2.3.0.3.03 Jul 20261.21.11.3 MB8 downloads82702726ce31…Get
  • 2.3.0.2.02 Jul 20261.21.11.3 MB8 downloadsd249ffb47d0e…Get
  • 2.2.0.2.02 Jul 202626.1.21.3 MB9 downloads52a80d6be6bd…Get
  • 2.3.0.1.128 May 20261.21.11.3 MB48 downloads970f2c18c8da…Get
  • 2.2.0.1.128 May 202626.1.21.3 MB39 downloadsfa15a8ecd5e5…Get
  • 2.2.0.1.026 May 202626.1.21.3 MB8 downloads8a9cd88f9a78…Get
  • 2.3.0.1.026 May 20261.21.11.3 MB11 downloads86c1ab605e43…Get
  • 2.3.0.0.023 May 20261.21.11.3 MB17 downloads4a157610f540…Get
  • 2.2.0.0.022 May 202626.1.21.2 MB12 downloadsb6b55a480948…Get
  • 2.1.0.0.25 May 202626.1.20.7 MB48 downloads5a9d3f364ad4…Get
  • 2.1.0.0.13 May 20261.21.10.7 MB11 downloadseba85ad08a78…Get
  • 2.1.0.0.02 May 202626.1.20.7 MB13 downloadse1f4a8aedb53…Get
  • 2.0.0.0.030 Apr 20261.21.10.7 MB15 downloads2da0bf721e7d…Get
  • 1.1.0.0.329 Apr 202626.1.20.6 MB16 downloads1fabec22f8b8…Get
  • 1.1.0.0.29 Mar 20261.21.10.6 MB41 downloads9736e26a59b1…Get
  • 1.1.0.0.19 Mar 20261.21.10.6 MB12 downloads43377c936ab3…Get
  • 1.1.0.0.08 Mar 20261.21.10.6 MB11 downloads7282a0563084…Get
  • 1.0.0.0.17 Mar 20261.21.10.6 MB12 downloadscf2ecbca90e6…Get

Frequently asked

Do I need to install Colossal Reactors 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.

What licence is Colossal Reactors 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 Colossal Reactors?

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 Colossal Reactors 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.

Which Minecraft versions does Colossal Reactors work on?

The author has not declared a supported version in the metadata we sync, so there is nothing here we can state as fact. Check the project's own page before installing it, and treat an old mod with no declared version as untested on modern Minecraft.

Details from Modrinth, where the author last updated it on 13 Aug 2026. We do not host files or republish descriptions. Available download links point to the author’s own release.

Not indexed yet. Score 51 against a threshold of 55. The page still exists and is still linked; it simply carries noindex until we hold more.

Is this information wrong or missing something? .