CurseForge · Minecraft mod
Nether Depths Upgrade
Nether Depths Upgrade is a small mod that adds some extra flora and fauna to the lava seas of the nether. A total of nine fish have been added, a new enchant and potion in order to explore the lava in the nether.
Quick answer
Which Nether Depths Upgrade release should I use?
Nether Depths Upgrade netherdepthsupgrade-3.1.9+1.21 targets 1.21, 1.21.1 with Fabric. The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server. All 2 required mods have matching files.
Where it goes
Is Nether Depths Upgrade required on the client, server, or both?
The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server.
The source does not explicitly classify this release as client-only or server-only.
What else does Nether Depths Upgrade netherdepthsupgrade-3.1.9+1.21 need?
netherdepthsupgrade-3.1.9+1.21. Change the file and its required mods may change too.
Install GeckoLib, Fabric API first. We found matching files for this game-version and loader setup. 1 comes through another mod in the chain.
1 extra mod was pulled in by another dependency. Indented rows show who needs each one. We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add Nether Depths Upgrade without breaking your instance.
Built for Nether Depths Upgrade netherdepthsupgrade-3.1.9+1.21. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use netherdepthsupgrade-3.1.9+1.21. It targets 1.21, 1.21.1 with Fabric; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install GeckoLib, Fabric API first. We found matching files for this game-version and loader setup. 1 comes through another mod in the chain.
- 03
Put it on the correct side
The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server.
- 04
Pick the file you checked
Use the “Get this file” button beside netherdepthsupgrade-3.1.9+1.21. It opens that exact file at the source.
About this project
What does Nether Depths Upgrade add?
Nether Depths Upgrade is a small mod that adds some extra flora and fauna to the lava seas of the nether. A total of nine fish have been added, a new enchant and a potion in order to explore the lava in the nether.
Dependencies
Geckolib 3.0
The latest update adds some new fish and a new glass that allows you to see in lava, so you can make all your lava based aquariums ;)

Lava fishing
This mod adds the ability to fish in lava(overworld/nether)
The new fish

Soul suckers in the soul sand valley, soul suckers can be used to craft some lovely boots

Witherbonefish in the soul sand valley

Bonefish in the nether wastes

Searing cod in the nether wastes

Glowdine in the crimson forest

Lava pufferfish in the warped forest, lava pufferfish can be used to brew a new potion

Obsidianfish in the basalt deltas

Magma cube fish in the basalt deltas

Blazefish in a fortress piece
The depths also give way for sponges to spawn that can absorb lava and dry when placed in water

The depths also spawn vents that spawn some good ores
For suggestions, bug reports and general chat about the mod, join the discord server below!
Project description from CurseForge.
Pick your setup
Nether Depths Upgrade by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.1
2 loader builds1.21
2 loader builds1.20.1
3 loader builds1.20
3 loader builds1.19.3
1 loader build1.19.2
2 loader builds1.18.2
1 loader build1.16.5
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Nether Depths Upgrade versions and loaders
netherdepthsupgrade-3.1.9+1.21
netherdepthsupgrade-3.1.9+1.21-fabric.jar
16 Apr 2025
netherdepthsupgrade-3.1.8-1.21
netherdepthsupgrade-3.1.8-1.21.jar
16 Apr 2025
netherdepthsupgrade-fabric-3.1.8-1.21
netherdepthsupgrade-fabric-3.1.8-1.21.jar
1 Sept 2024
netherdepthsupgrade-3.1.7-1.21
netherdepthsupgrade-3.1.7-1.21.jar
1 Sept 2024
netherdepthsupgrade-3.1.6
netherdepthsupgrade-3.1.6.jar
22 Jun 2024
netherdepthsupgrade-fabric-3.1.7-1.21
netherdepthsupgrade-fabric-3.1.7-1.21.jar
22 Jun 2024
netherdepthsupgrade-3.1.5-1.21
netherdepthsupgrade-3.1.5-121.jar
20 Jun 2024
netherdepthsupgrade-fabric-3.1.6-1.21
netherdepthsupgrade-fabric-3.1.6-1.21.jar
20 Jun 2024
netherdepthsupgrade-fabric-3.1.6-1.20
netherdepthsupgrade-fabric-3.1.6-1.20.jar
13 May 2024
netherdepthsupgrade-3.1.5-1.20
netherdepthsupgrade-3.1.5-1.20.jar
13 May 2024
netherdepthsupgrade-fabric-3.1.5-1.20
netherdepthsupgrade-fabric-3.1.5-1.20.jar
3 Mar 2024
netherdepthsupgrade-fabric-3.1.5-1.19.2
netherdepthsupgrade-fabric-3.1.5-1.19.2.jar
3 Mar 2024
Looking for an older file? The official CurseForge project page is in Resources.
