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Cleanroom RelauncherMinecraft mod for 1.12.2

Relaunches Forge into Cleanroom!

client onlynewest supported release 1.12.2LibraryOptimizationManagement
Latest version
1.3.0
Minecraft
1.12.2
Loader
Forge
Licence
MIT
Downloads
34.3k
Updated
17 d ago
Available on
Modrinth

Minecraft versions

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

Other mods
MinecraftThroughJavaEvidenceReleased
1.12.2Forge8+declared18 Sept 2017

Download

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

Browse 33 indexed releases

Most recently published release

1.3.0release22 Oct 2026

!cleanroom-relauncher-1.3.0.jar · 2.7 MB · for 1.12.2 · Forge

Download this release
c4dc5e42e5af…
Older versions24
  • 1.2.115 Oct 20261.12.22.7 MBf3853d0cf01c…Get
  • 1.2.013 Oct 20261.12.22.7 MBea562e5897cd…Get
  • 1.1.611 Oct 20261.12.22.7 MB5b3b004b81c2…Get
  • 1.1.510 Oct 20261.12.22.7 MB7cf36c641442…Get
  • 1.1.48 Sept 20261.12.22.7 MB06eb2f1ce075…Get
  • 1.1.328 Aug 20261.12.22.7 MB2da004f6e06e…Get
  • 1.1.223 Aug 20261.12.22.7 MBdb09cfe7a89b…Get
  • 1.1.120 Aug 20261.12.22.7 MB51d5fe5e0834…Get
  • 1.0.514 Aug 20261.12.22.7 MBa91d3f5600c9…Get
  • 1.0.39 Aug 20261.12.22.7 MBdffdc0c6b8bb…Get
  • 1.0.24 Aug 20261.12.22.7 MB02859c5008a8…Get
  • 1.0.127 Jul 20261.12.22.6 MB654 downloadsc4f66fe7ae38…Get
  • 1.0.025 Jul 20261.12.22.6 MB300 downloads20fdcacfc922…Get
  • 0.6.315 Jul 20261.12.22.6 MB1.5k downloads1fc765dde027…Get
  • 0.6.25 Jul 20261.12.22.6 MB1.4k downloads24102a7ab1e5…Get
  • 0.6.11 Jul 20261.12.22.6 MB634 downloads1a5fad56fe30…Get
  • 0.6.030 Jun 20261.12.22.8 MB222 downloads96aec454f399…Get
  • 0.5.011 May 20261.12.20.4 MB2.8k downloads8f4dbc654c07…Get
  • 0.4.020 Mar 20261.12.20.4 MB2.5k downloads168a44a075d7…Get
  • 0.3.211 Dec 20251.12.20.3 MB3.1k downloadsbabd36ee0921…Get
  • 0.3.17 Oct 20251.12.20.3 MB2.6k downloads6411a7d39054…Get
  • 0.3.07 Jul 20251.12.20.3 MB1.4k downloads366734968a23…Get
  • 0.2.610 May 20251.12.20.3 MB973 downloads3b93d3b5bd97…Get
  • 0.2.524 Apr 20251.12.20.3 MB268 downloads7e6f1575d285…Get

Frequently asked

Does Cleanroom Relauncher work on Minecraft 1.12.2?

Yes. 1.12.2 is the newest Minecraft version Cleanroom Relauncher declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Do I need to install Cleanroom Relauncher on the client or the server?

The client only. There is nothing to install on the server side. That is the author's declared design, not a guarantee for every server: one running anti-cheat or missing a counterpart mod can still object.

Which platform or loader does Cleanroom Relauncher support?

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 Cleanroom Relauncher?

Among the supported Minecraft releases above, the highest recorded requirement is Java 8 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.

What licence is Cleanroom Relauncher 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 Cleanroom Relauncher?

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 Cleanroom Relauncher 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.

Used by

1 project lists Cleanroom Relauncher as a required dependency.

Details from Modrinth, where the author last updated it on 22 Oct 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? .