
DeepslateInfestation
A Fabric Minecraft mod that makes it more challenging (and annoying) to mine within deepslate.
Screenshots




About this Mod
DeepslateInfestation
A Fabric Minecraft mod that makes it more challenging (and annoying) to mine within deepslate.
Important!
- Optionally requires JsonPatcher to have the new mob included into kill_a_mob and kill_all_mobs advancements.
Description
Adds a new mob — Deepslate Silverfish — that only spawns under Y = 0 (configurable) even in places fully lit up by torches (configurable), but only near deepslate blocks — including slabs, other non-full blocks, walls, and even ceiling. It's a darker, smaller, weaker yet a much more prevalent version of a normal Silverfish.
Not only it spawns naturally where deepslate generates, the mob is also quite often found in a form of infested deepslate blocks.
Good luck mining with this little annoyance!
Installation
Requires Minecraft 1.20.1, Fabric Loader >=0.14.25, Fabric API and Cloth Config API.
Optionally requires JsonPatcher to have the new mob included into kill_a_mob and kill_all_mobs advancements.
Configuration
The mod can be configured from within the file ".minecraft/config/deepslateinfestation.json5" or using modmenu.
- Light level preventing Deepslate Silverfish spawning can be specified (15 by default, meaning allow spawning regardless of light level)
- Maximum height below which to allow Deepslate Silverfish spawning can be specified (0 by default, meaning allow spawning where deepslate starts generating)
License
DeepslateInfestation is licensed under MIT.
Available Versions
How to Install DeepslateInfestation on Your Server
Order Server
Order a Minecraft Java server with at least 4 GB RAM (6 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 "DeepslateInfestation". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.20.1
Server-side
✓ RequiredRecommended RAM
6 GB(min. 4 GB)Frequently Asked Questions
DeepslateInfestation 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 4 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 DeepslateInfestation compatible with fabric?
DeepslateInfestation officially supports fabric for Minecraft 1.20.1. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with DeepslateInfestation – how to optimize performance?
Recommended RAM: 6 GB (per 5 players). Use /spark profiler to check if DeepslateInfestation 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.
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