Mycelium
A library mod used for multiple things including easy ASM fixes and more.
About this Mod
This mod allows you to insert code into methods from vanilla or mod classes, rewrite them, or even create new methods for classes.
This is a fork of the MysteriumLib mod.
Available Versions
How to Install Mycelium on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set forge Loader
In the panel under "Egg", select the forge loader and matching Minecraft version (1.12.2).
Install Mod
Open the mod browser in the dashboard and search for "Mycelium". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.12.2, 1.7.10
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Mycelium 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 Mycelium compatible with forge?
Mycelium officially supports forge for Minecraft 1.12.2, 1.7.10. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Mycelium – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Mycelium 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 Mycelium with just one click on your server.