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Cleanroom relauncher unofficialMinecraft mod for 1.12.2

Launch Cleanroom on any launcher, or update your mmc instance to Cleanroom

newest supported 1.12.2Mc Miscellaneous
Latest version
++relauncher-0.8.2-shadow.jar
Minecraft
1.12.2
Java
Java 8+
Loader
Forge
Licence
not stated
Downloads
19.3k
Updated
2 mo ago
Available on
CurseForge

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

Every version Cleanroom relauncher unofficial 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 unofficial’s own host. Nothing is re-hosted here.

All 28 releases
++relauncher-0.8.2-shadow.jarrelease22 Jul 2026

++relauncher-0.8.2-shadow.jar · 5.3 MB · for 1.12.2

Download latest
006bfdb810e5…
Older versions24
  • ++relauncher-0.8.1-beta-shadow.jar20 Jul 20261.12.25.3 MB2 downloadsdff098c7786e…Get
  • ++relauncher-0.8.0-beta-shadow.jar3 Jul 20261.12.25.3 MB1 download8c3094a3912b…Get
  • ++relauncher-0.7.1-shadow.jar25 Jun 20261.12.25.2 MB285 downloads74ae44410e9c…Get
  • ++relauncher-0.7.0-shadow.jar25 Jun 20261.12.25.2 MB7 downloads14cf0c7bfff9…Get
  • ++relauncher-0.6.2-shadow.jar22 Jun 20261.12.25.2 MB11 downloadsf03f33075c6b…Get
  • ++relauncher-0.6.1-shadow.jar20 Jun 20261.12.25.3 MB45 downloads46637584ffa2…Get
  • ++relauncher-0.6.0-shadow.jar14 Jun 20261.12.25.3 MB93 downloadscd40bae57884…Get
  • ++relauncher-0.5.4-beta-shadow.jar4 Dec 20251.12.22.7 MB10.6k downloads1754b9fc4a28…Get
  • ++relauncher-0.5.3-beta-shadow.jar1 Dec 20251.12.22.7 MB7 downloads8fae2ce67481…Get
  • ++relauncher-0.5.1-beta-shadow.jar2 Nov 20251.12.22.7 MB251 downloads7e52442b5f01…Get
  • ++relauncher-0.5.0-beta-shadow.jar5 Oct 20251.12.22.7 MB56615eaafe59…Get
  • ++relauncher-0.4.7-beta-shadow.jar30 Aug 20251.12.26.6 MB384f0a05ba6e…Get
  • ++relauncher-0.4.6-beta-shadow.jar28 Aug 20251.12.26.6 MB126 downloadsb3771a6ed354…Get
  • ++relauncher-0.3.12-beta.jar8 Jul 20251.12.20.8 MB1.7k downloads6b6262ad9fd8…Get
  • ++relauncher-0.3.11-beta.jar24 Jun 20251.12.20.8 MB11 downloads5fb69381a63c…Get
  • ++relauncher-0.3.10-beta.jar5 Jun 20251.12.20.8 MB6 downloadsc0428fcc6a15…Get
  • ++relauncher-0.3.5-beta.jar24 Apr 20251.12.20.8 MB196 downloads65adf62b1845…Get
  • ++relauncher-0.3.3-beta.jar24 Apr 20251.12.20.8 MB7 downloads4ae818cc59d3…Get
  • ++relauncher-0.3.2-beta.jar24 Apr 20251.12.20.8 MB5 downloads1fcac46c2e53…Get
  • ++relauncher-0.3.1-beta.jar19 Apr 20251.12.20.8 MB20 downloads441aa951508f…Get
  • ++relauncher-0.3.0-beta.jar17 Apr 20251.12.20.8 MB16 downloads9185f9c626cc…Get
  • ++relauncher-0.2.11-beta.jar29 Mar 20251.12.20.6 MB70 downloads11998b1c0dbf…Get
  • ++relauncher-0.2.10-beta.jar28 Mar 20251.12.20.6 MB6 downloads9bbd00d33f14…Get
  • ++relauncher-0.2.4-beta.jar28 Mar 20251.12.21.5 MB8 downloads03d0d23301ec…Get

Frequently asked

Does Cleanroom relauncher unofficial work on Minecraft 1.12.2?

Yes. 1.12.2 is the newest Minecraft version Cleanroom relauncher unofficial 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 platform or loader does Cleanroom relauncher unofficial 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 unofficial?

On the newest Minecraft version it supports, Java 8 or newer. The requirement comes from the Minecraft version you run rather than from the mod itself, so on an older supported Minecraft the answer is that version's Java, not this one.

How do I install Cleanroom relauncher unofficial?

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 unofficial 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. The download link goes to the source recorded for that release; verify the publisher, filename and 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!JourneyMapReal-time map used for mapping in-game or your browser as you explore.Enchantment DescriptionsAdds in-game descriptions for enchantments to tooltips.Jade 🔍Shows information about what you are looking at. (Hwyla/WAILA fork for Minecraft 1.16+)Collective🎓 Collective is a shared library with common code for all of Serilum's mods.

Details from CurseForge, where the author last updated it on 4 Aug 2026. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

Is this information wrong or missing something? .