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FermiumASM

by fonnymunkey · for Minecraft

1.12.2 Optimization and improvements mod, forked from NormalASM

124KDownloads
7 mo agoLast updated
LGPL-2.1-onlyLicense
ForgeLoaders

About FermiumASM

From Modrinth

1.12.2 Optimization and improvements mod, forked from NormalASM

IMPORTANT:

FermiumASM is a fork of NormalASM by skmedix licensed LGPLv2.1;

Which is an updated fork of NormalASM by mirrorcult licensed LGPLv2.1;

Which is a fork for rebranding to remove "questionable" content of LiASM/CensoredASM by Rongmario licensed LGPLv2.1.**

As with the original and the forks, FermiumASM makes multiple improvements, optimizations, and bug fixes to Minecraft, including but not limited to:

  • Optimizing RAM usage, especially in larger packs.
  • Fixing multiple crashes, in Minecraft, Forge, and some other mods.
  • Multiple performance improvements.
  • Crash handling to allow you directly upload crash reports to mclo.gs.

While the NormalASM forks only rebranded and stayed updated with CensoredASM, FermiumASM on the other hand does more significant changes to its function:

  • Refactored and modified to use and depend on FermiumBooter, an alternative to mixin loading, replacing its dependency on MixinBooter.
  • Removes internal Spark profiling as it is both incompatible with, and superseded by, the updated fork Spark Unforged, allowing for better profiling.
  • Removes the chance to pick a random author to blame in a crash report.
  • Rebranded user-facing and logging branding, including icon and url, to FermiumASM, and updated authors to recognize fork authors.

As with the original, FermiumASM is incompatible with VanillaFix and TexFix as their functionalities have been improved and added directly to the mod.

FermiumASM does not depend on MixinBooter, it now depends on FermiumBooter.

FermiumASM has been tested as working within an active modpack and should perform accurately as a replacement to the forks or original mod.

Due to the changes, if you have any issues, please report them to the linked issue tracker at the top for FermiumASM, not the original mod.

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Highlights

From source data

Game versions

Built for Minecraft 1.12.2.

Loaders

Runs on Forge.

Footprint

Rated a light load on a server.

What kind of mod it is

From the catalog
Listed on Modrinth as “Mods”

Performance

Makes the game or server run faster or lighter without changing how it plays.

Runs on your server

From source side support

Modrinth lists FermiumASM as required on the server. Check its Modrinth page to see whether players need it too.

Compatibility

Game
Minecraft
Loaders
Forge
Runs on
Serverrequired on the server
Game versions
1.12.2

Verified at the source

  • ✓ModrinthOfficial listing, checked 2026-10-01Open ↗
  • ✓Authorfonnymunkey, as published on Modrinth
  • ✓LicenseLGPL-2.1-onlyFree

FermiumASM, answered

Generated from the mod’s own source data.

Do my players need to install FermiumASM?

Modrinth lists FermiumASM as required on the server. Check its Modrinth page to see whether players need it too.

Which loaders does it support?

Forge.

Is it free?

Yes. FermiumASM is free to download from Modrinth. Its license is LGPL-2.1-only.

How do I add it to my Nxeon server?

Use “Add to a server” on this page, or open NxLabs from your dashboard. We install it, restart your server and switch it on.

NxLabs

Run FermiumASM on a Minecraft server.

Deploy in about a minute from $4.20 a month, then add FermiumASM in one click.