Gloomfall
by NotEvenBelow
Gloomfall changes hostile mobs and the ambience below deepslate, for players who want harder nights in the depths of a Fabric world.
What it does
Hostile mobs are slightly overhauled, and their attacks hit harder. Once a player first drops beneath y level 0, the game's regular soundtrack cuts out, and a deepslate track begins playing a few seconds afterward, while the area beneath the deepslate level takes on a gloomier mood. A config option through the mod menu turns that music off in chosen areas, and a custom excluded area can be set by radius around a circle.
Several new effects are applied to the player. Zombie attacks are rarer above y 0 and more common beneath it, and an effect taken from a creeper explosion reduces speed by 20% and disables right-click interaction. Taking a skeleton's hit costs 40% of natural food and health regeneration, and hostile mobs resist 72% of projectile damage. Gloomfall is open source under the GNU Lesser General Public License v3.0 only and runs on Fabric for 1.20.1, with 1.1.0 as the latest file.
Key features
Deepslate ambience
Mobs and the atmosphere change under the deepslate level, and the music switches to a deepslate track after a short delay.
Hostile mob overhaul
Hostile mobs get slightly stronger attacks and resist most incoming projectile damage.
Player effects
Zombies, creepers and skeletons each apply a timed effect that weakens movement, damage or food.
Music and area settings
Deepslate music can be disabled in set areas through the mod menu, using custom excluded circles.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Who it’s for: Players who want a harsher survival experience below the surface, and server owners who want the deepslate atmosphere and effects on a Fabric world.
How it compares
Hostile Mobs is server-side only, open source under the MIT License and published for 1.20.1. All Hostile Mobs runs on client and server under the MIT License for 26.1.2, and is not open source, so players need it installed as well. The difference is in environment and version range, since Gloomfall is open source under the GNU Lesser General Public License v3.0 only and targets 1.20.1.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Gloomfall | Fabric | 1.20.1 | Not published | 2025-12-27 |
| Hostile Mobs | Fabric | 1.20.1 | Server-side only | 2024-12-02 |
| All Hostile Mobs | Fabric | 26.1.2 | Client and server | 2026-07-25 |
Questions
Which loader does Gloomfall need?
Does Gloomfall need Fabric API?
Can the deepslate music be turned off in some areas?
In the catalog
Gloomfall is one of 11,058 Mobs mods on ModsFinder, and one of 5,189 Mobs mods for Fabric. 34,764 mods support Minecraft 1.20.1.
More from NotEvenBelow
Similar mods
Official listing
- Modrinth page
- modrinth.com/mod/gloomfall
- Owner
- NotEvenBelow
- Published
- 2025-11-07
- Updated on Modrinth
- 2025-12-27
- Facts verified
- 2026-10-15