BlahajASM

BlahajASM

1.12.2 Optimization and improvements mod, forked from CASM

by
21.0K Downloads
forgeoptimization
Rent Server with this Mod

About this Mod

BlahajASM

The Blahaj are now preparing to byte code manipulate your game. >w<

The main purpose of BlahajASM is to keep the features of FermiumASM without having to use FermiumBooter as i have a personal dislike of the requirement of a new mod

As with the original, BlahajASM 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.

Significant changes from CensoredASM:

  • Removed built-in Spark profiling as it is both incompatible with, and superseded by, the updated fork Spark Unforged
  • Rebranded user-facing and logging branding to BlahajASM
  • Removed chance to pick and blame a random author in a crash
  • Updated mcmod.info to add fork author (me >w<), update url, and change icon

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

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

Cleanroom compatablity

Spoiler Add "mirror.blahajasm.BlahajReflector" and "mirror.blahajasm.common.crashes.ModIdentifier" to "Launch Wrapper API Change Patching List" in fugue.cfg

Also add "mirror.blahajasm.common.crashes.ModIdentifier" to "getCodeSource() Patching List" in fugue.cfg

IMPORTANT:

BlahajASM is a fork of FermiumASM by fonnymunkey Which is a fork for removing the need for the mod FermiumBooter;

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 L**iASM/CensoredASM by Rongmario licensed LGPLv2.1.

Available Versions

BlahajASM 5.32release
MC 1.12.2forge
May 5, 2026
BlahajASM 5.31release
MC 1.12.2forge
April 5, 2026
BlahajASM 5.29release
MC 1.12.2forge
August 27, 2025
BlahajASM 5.28hfrelease
MC 1.12.2forge
April 9, 2025
BlahajASM 5.28release
MC 1.12.2forge
March 25, 2025

How to Install BlahajASM on Your Server

1

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

2

Set forge Loader

In the panel under "Egg", select the forge loader and matching Minecraft version (1.12.2).

3

Install Mod

Open the mod browser in the dashboard and search for "BlahajASM". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

forge

Minecraft Versions

1.12.2

Server-side

Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

BlahajASM server crashes on startup – what to do?

Most common cause: wrong forge version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.12.2). You can switch loaders with one click in the panel.

Is BlahajASM compatible with forge?

BlahajASM officially supports forge for Minecraft 1.12.2. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with BlahajASM – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if BlahajASM consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.

Rent Modded Server

Install BlahajASM with just one click on your server.

Recommended RAM
4 GBab €8/mo
Min. 3 GB | +1 GB pro 8 Spieler
Create Server Now
1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
GNU Lesser General Public License v2.1 only
Server-side
Required

Supported Versions

1.12.2