ModsJava
Alex's Caves rad fork
Java mod listed for Minecraft 1.20. File opened and checked on 26 Sep 2026; downloads from the MC Java Mods app on Android.
I don't know my version or loader
Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.
No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.
This is a fork of Alex's Caves with the radiation and acid protection set to use tags instead of item ids. This item will be archived once the capability is added to upstream Alex's Caves. Please support the original creators instead of me.
Currently adds:
- Radiaction protection item tag, "rad_protective_armor".
- Acid protection item tag, "acid_protective_armor".
- Radioactive items with the following item tags:
- weak_radioactive_items
- radioactive_items
- strong_radioactive_items
All of these use the ModID "alexscaves".
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.20.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on CurseForge — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
File checked by MCModsHub
- Ships as alexscaves-2.0.2.jar — drop this file into the mods folder
- Download size: 71.4 MB
- Download link checked 28 Sept 2026 — working
These come from our own check of the pack file, not from the source page.