
One Block ModPack
Java modpack listed for Minecraft 1.21. File opened and checked on 30 Sep 2026; downloads from the MC Java Mods app on Android.
A lightweight OneBlock-based modpack that lets you start on a single regenerating block and build your world from nothing. Includes extra performance mods…
⬇ Download on Modrinth
This modpack delivers a fully enhanced OneBlock experience, combining the depth and progression of the original OneBlock mod with a collection of performance-boosting addons for smooth, stable gameplay. Begin your journey stranded in the void on a tiny floating island, where a single regenerating block becomes your only source of materials. With every block you break, new resources appear — from simple dirt and wood to rare blocks from the Nether and End. As you progress, biome cycles, surprise events, friendly mobs, and evolving monster waves keep the world feeling alive and unpredictable.
Explore more than 40 biomes through the OneBlock’s cycling system, unlock entire new material pools by reaching the Nether and End, and survive increasingly challenging encounters designed to scale with your growth. Whether you're gathering essential early-game materials or facing chaotic late-game waves, every block break shapes your story.
To ensure a smooth experience, this modpack includes a curated set of performance mods, improving FPS, reducing lag spikes, and enhancing overall client and server stability. Even players with low-end PCs can enjoy a seamless adventure thanks to optimizations that work quietly in the background without affecting gameplay.
The modpack supports both singleplayer and multiplayer. In multiplayer mode, each player can generate their own independent OneBlock island, spaced safely apart so everyone can progress at their own pace. Optional datapacks allow you to customize the experience even further — from void dimensions to hardcore no-island starts.
With its blend of survival, randomness, progression, and optimization, this modpack offers a clean, polished, and replayable OneBlock journey for all kinds of players. Build, fight, explore, automate, and expand — your entire world grows from one single block.
- 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.
- Downloads as one block 1.0.0.mrpack
- Download size: 2 KB
- Download link checked 5 Oct 2026 — working
These come from our own check of the pack file, not from the source page.