DeepslateInfestation
by kabanod1m
DeepslateInfestation makes mining inside deepslate more hazardous by spawning Deepslate Silverfish in the stone layers.
What it does
Deepslate Silverfish can appear inside deepslate once the world reaches the depths where deepslate generates. The mod lets server owners set the light level below which these silverfish may spawn, with 15 as the default meaning they can spawn at any light level. A maximum height can also be set, with 0 as the default allowing spawns wherever deepslate starts to generate.
Cloth Config API and Fabric API are required, and JsonPatcher is optional. JsonPatcher adds new mobs to the kill-mob advancements. The mod is client and server, so the server and every player need it. It is released under the MIT License and is open source, with the source code and issue tracker public, for Fabric 1.20.1 (file 1.20.1-1.0, 2025-05-05).
Key features
Deepslate Silverfish spawns
Silverfish spawn inside deepslate, adding a hostile threat to digging through the lower layers of the world.
Light level control
A configurable light threshold decides when silverfish may spawn, with the default allowing spawns at any light level.
Maximum height setting
A height limit can be set for spawning, with the default allowing spawns wherever deepslate starts generating.
Advancement support
With JsonPatcher installed, the new mob is included in the kill-mob advancements.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 2
Optional 2
Use cases
Harder mining
Players who want deepslate layers to feel more dangerous can keep the default settings and work through them with more care.
Controlled spawning
Server owners can raise the light level or lower the height limit so silverfish appear only in chosen areas.
Who it’s for: Players who want a more demanding mining experience, and server owners who want to tune where the silverfish appear.
How it compares
Light Level 7 Spawning is server-side only and open source under the MIT License, for 1.20.1, and it controls spawning by light level. Gloomfall is open source under the GNU Lesser General Public License v3.0 only, for 1.20.1. DeepslateInfestation needs both sides because it is client and server, and it is released under the MIT License.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| DeepslateInfestation | Fabric | 1.20.1 | Client and server | 2025-05-05 |
| Light Level 7 Spawning | Fabric | 1.20.1 | Server-side only | 2024-01-26 |
| Gloomfall | Fabric | 1.20.1 | Not published | 2025-12-27 |
Questions
Does DeepslateInfestation need Fabric API?
Does the server need the mod installed?
Is JsonPatcher needed for the silverfish to work?
Which versions does DeepslateInfestation support?
In the catalog
DeepslateInfestation is one of 8,515 World generation mods on ModsFinder, and one of 4,027 World generation mods for Fabric. 34,764 mods support Minecraft 1.20.1.
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Official listing
- Modrinth page
- modrinth.com/mod/deepslateinfestation
- Owner
- kabanod1m
- Published
- 2025-05-05
- Updated on Modrinth
- 2025-05-05
- Facts verified
- 2026-10-15