
Bacterium
Bacteria to eat and reform your world.
About this Mod
Recreation of the long lost Bacteria Mod by TeNNoX.
Genetically engineered bacteria to eat parts of or all of your world. Destroy all the sand in a desert, or just turn it all into grass.
Either way you want to go, be careful with these powerful bacteria colonies.
![]()
Start out by crafting some Must,
![]()
Then put it into some water to grow.
![]()
A Lot.
![]()
Once you have enough, compress 9 together and make your colony, either to replace your world,
![]()
(By placing this block on top of what you want to replace, and then the thing you want it to become on top of that)
or to destroy it.
![]()
(By placing all the blocks you want to remove on top of this, and then powering it).
Remember to craft a Jammer just in case.
![]()
WARNING: The Bacteria in this mod can break bedrock and duplicate diamonds.
Bacterium Limits is a datapack that can be used to add some basic restrictions.
Available Versions
How to Install Bacterium on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.20.1).
Install Mod
Open the mod browser in the dashboard and search for "Bacterium". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.20.1, 1.19.4
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Bacterium server crashes on startup – what to do?
Most common cause: wrong fabric 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 (1.20.1). You can switch loaders with one click in the panel.
Is Bacterium compatible with fabric?
Bacterium officially supports fabric for Minecraft 1.20.1, 1.19.4. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Bacterium – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Bacterium 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.
Similar Mods
Rent Modded Server
Install Bacterium with just one click on your server.