
Modrinth · Minecraft mod
Just-In NETHER
Enhance the NETHER adventure experience ,and the addition of entirely new species.
Quick answer
Which Just-In NETHER release should I use?
Just-In NETHER 1.2.1 targets 1.21.1 with NeoForge. It must be installed on the client. Do not install it on the dedicated server. No extra mods listed for this file.
Where it goes
Is Just-In NETHER required on the client, server, or both?
It must be installed on the client. Do not install it on the dedicated server.
This file is marked client-only.
What else does Just-In NETHER 1.2.1 need?
1.2.1. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add Just-In NETHER without breaking your instance.
Built for Just-In NETHER 1.2.1. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 1.2.1. It targets 1.21.1 with NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
It must be installed on the client. Do not install it on the dedicated server.
- 04
Pick the file you checked
Use the “Get this file” button beside 1.2.1. It opens that exact file at the source.
About this project
What does Just-In NETHER add?

A new species, Bullkin, has been added. Like piglins, they are born in the Nether and have a fondness for gold. The two tribes often engage in fierce battles over gold.
Bullkins

Two new bosses, representing the Piglin and Bullkin factions, will lead their respective armies into battle. However, you are their common target.
Bosses


Project description from Modrinth.
Pick your setup
Just-In NETHER by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.5
1 loader build1.21.4
1 loader build1.21.3
1 loader build1.21.2
1 loader build1.21.1
1 loader build1.20.1
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Just-In NETHER versions and loaders
1.2.1
just_in_nether-1.2.1-neoforge-1.21.1.jar
29 Sept 2026
1.2.1
just_in_nether-1.2.1-neoforge-1.21.1.jar
19 Sept 2026
1.2.0
just_in_nether-1.2.0-neoforge-1.21.1.jar
7 Sept 2026
1.1.9
just_in_nether-1.1.9-neoforge-1.21.1.jar
2 Sept 2026
1.0.0
just_in_nether-1.1.8-forge-1.20.1.jar
12 Sept 2025
1.0.0
just_in_nether-1.1.8-neoforge-1.21.1.jar
27 Jun 2025
1.0.0
just_in_nether-1.1.8-forge-1.20.1.jar
4 Jun 2025
1.0.0
just_in_nether-1.1.6-forge-1.20.1.jar
5 Feb 2025
1.01.0
just_in_nether-1.1.0-forge-1.20.1.jar
2 Oct 2024
1.0.7
just_in_nether-1.0.7-forge-1.20.1.jar
5 Sept 2024
1.0.6
just_in_nether-1.0.6-forge-1.20.1.jar
30 Aug 2024
1.0.5
just_in_nether-1.0.5-forge-1.20.1.jar
26 Aug 2024
Looking for an older file? The official Modrinth project page is in Resources.