Deepslate Dungeons

Builds dungeons and strongholds below y = 0 out of deepslate instead of stone!

219 Downloads

fabricadventureworldgen

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About this Mod

Deepslate stronghold library, watermark saying

Deepslate Dungeons improves the environmental storytelling of the game by switching up the block palettes of all dungeon/stronghold rooms below y = 0 for deepslate variants! This also helps to reduce thematic clashing when you're deep underground.

🎨 Customization

There are a number of gamerules for you to use to make your playthroughs just as you'd like them to be! They each must be prefixed with the namespace deepslate-dungeons in commands.

Registry Identifier	Description	Default Value	Value Bounds
`stronghold_y_threshold`	The max Y level deep stronghold room variants generate at.	0	-∞...∞
`dungeon_origin_y_threshold`	The max Y level deep dungeon variants generate at.	0	-∞...∞
`stronghold_convert_oak`	Whether deep stronghold variants replace oak with dark oak.	true	true, false
`stronghold_convert_torches`	Whether deep stronghold variants include soul torches.	false	true, false
`chiseled_bookshelves_in_library`	Whether stronghold libraries generate chiseled bookshelves.*	false	true, false

* Some books will be enchanted. This feature is a little experimental and may get moved to a separate mod at some point! Check out the gallery for an example of how this looks in-game.

Available Versions

Deepslate Dungeons 1.0.0 (26.1.x) - Initial Releaserelease

MC 26.1, 26.1.1, 26.1.2fabric

April 15, 2026

How to Install Deepslate Dungeons 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 (26.1.2).

Install Mod

Open the mod browser in the dashboard and search for "Deepslate Dungeons". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabric

Minecraft Versions

26.1.2, 26.1.1, 26.1

Server-side

✓ Required

Recommended RAM

6 GB(min. 4 GB)

Frequently Asked Questions

Deepslate Dungeons 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 (26.1.2). You can switch loaders with one click in the panel.

Is Deepslate Dungeons compatible with fabric?

Deepslate Dungeons officially supports fabric for Minecraft 26.1.2, 26.1.1, 26.1. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Deepslate Dungeons – how to optimize performance?

Recommended RAM: 6 GB (per 5 players). Use /spark profiler to check if Deepslate Dungeons 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.