
Modrinth · Minecraft mod
Just-In CAVE
A new tool can help you mining easier,and some thing cool in cave.
Quick answer
Which Just-In CAVE release should I use?
Just-In CAVE 1.2.3 targets 1.21.1, 1.20.1 with Forge, 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 CAVE 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 CAVE 1.2.3 need?
1.2.3. 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 CAVE without breaking your instance.
Built for Just-In CAVE 1.2.3. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 1.2.3. It targets 1.21.1, 1.20.1 with Forge, 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 1.2.3. It opens that exact file at the source.
About this project
What does Just-In CAVE add?

This is a mod that improves the cave experience and adds a new tool "hammer", which can destroy 3*3 blocks at a time.
Two new ore fragments have also been added, namely granite and chromium. They can be combined with gold and iron to form new alloys, rose gold and steel.
New item: Torch Bag - you can put torch inside and placed torch right click with it.
New Boss : |||The Old Miner||| appear in the cave,he will attack you when you're mining.
You can also use the soul fire to burn the minecart to summon him.
Connect with Just-In OCEAN to create the water spirit hammer.
More content about cave experiences will be added in the future.
Project description from Modrinth.
Pick your setup
Just-In CAVE 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
2 loader builds1.20.1
2 loader buildsCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Just-In CAVE versions and loaders
1.2.3
just_in_cave-1.2.3-neoforge-1.21.1.jar
11 Nov 2026
1.0.0
just_in_cave-1.2.3-forge-1.20.1.jar
12 Sept 2025
1.0.0
just_in_cave-1.2.3-neoforge-1.21.1.jar
27 Jun 2025
1.0.0
just_in_cave-1.2.3-forge-1.20.1.jar
4 Jun 2025
1.0.0
just_in_cave-1.2.1-forge-1.20.1.jar
5 Feb 2025
1.1.5
just_in_cave-1.1.5-forge-1.20.1.jar
2 Oct 2024
1.1.3
just_in_cave-1.1.3-forge-1.20.1.jar
5 Sept 2024
1.1.2
just_in_cave-1.1.2-forge-1.20.1.jar
29 Aug 2024
1.1.2
just_in_cave-1.1.2-forge-1.20.1.jar
26 Aug 2024
1.1.1
just_in_cave-1.1.1-forge-1.20.1.jar
22 Aug 2024
1.0.0
just_in_cave-1.1.1-forge-1.20.1.jar
19 Aug 2024
1.0.0
just_in_cave-1.1.0-forge-1.20.1.jar
17 Aug 2024
Looking for an older file? The official Modrinth project page is in Resources.