ModsJava
Random OneBlock
Java mod listed for Minecraft 1.20–1.21. 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 mod adds 2 blocks:
- Random Lucky Block
- Random One Block
The difference: The one block regenerates, the lucky block doesn't
Fully compatible with other mods, also using modded items in the drop pool. I recommend adding a bunch of other mods to make the challenge more interesting
IMPORTANT!! To create a OneBlock world:
- Create new world
- Select Superflat
- Go to presets and select Void world
- Go to Game rules
- Set the game rule generate OneBlock to true
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.8, 1.21.9, 1.21.10
- 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 random_one_block-1.0.1-neoforge-1.21.8.jar — drop this file into the mods folder
- Download size: 26 KB
- Download link checked 3 Oct 2026 — working
These come from our own check of the pack file, not from the source page.