DeepslateInfestation

DeepslateInfestation

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

by
169 Downloads
fabricadventuremobsworldgen
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Screenshots

Deepslate Silverfish
A bunch of them crawling out to help
Creeper explosion resulting in them coming out of walls
Mod menu

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

DeepslateInfestation 1.20.1-1.0release
MC 1.20.1fabric
May 5, 2025

How to Install DeepslateInfestation on Your Server

1

Order Server

Order a Minecraft Java server with at least 4 GB RAM (6 GB recommended).

2

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.20.1).

3

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

fabric

Minecraft Versions

1.20.1

Server-side

Required

Recommended 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.

Rent Modded Server

Install DeepslateInfestation with just one click on your server.

Recommended RAM
6 GBab €12/mo
Min. 4 GB | +1 GB pro 5 Spieler
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NVMe SSD Storage
DDoS Protection included

Details

License
MIT License
Server-side
Required

Supported Versions

1.20.1