ModpacksJava
One Block Challenge
Java modpack listed for Minecraft 1.21. File opened and checked on 3 Oct 2026; downloads from the MC Java Mods app on Android.
A Minecraft modpack centered around the One Block challenge, where players begin on a single block that regenerates infinitely. Progress through unique…
⬇ Download on Modrinth
One Block is a fun survival modpack where you start on a single block floating in the void. Breaking the block gives you different items, blocks, and mobs as you progress through phases. Build your island, gather resources, and survive using just one block.
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 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 Modrinth — 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
- Downloads as one block challenge 1.1.0.mrpack
- Download size: 6.0 MB
- Download link checked 5 Oct 2026 — working
These come from our own check of the pack file, not from the source page.