
Simply OneBlock
Just break the block, see where it takes you !
Screenshots

About this Mod
Welcome to Simply OneBlock !

What is it ?
Simply OneBlock is a datapack that changes the generation of your world to make you spawn on a single regenerative block. As you break the block you'll progress through 20 different phases allowing you to discover new biomes transforming the regenerative block and it's surrounding environement. Every phase will give you the opportunity to mine different blocks, get different loots, see different mobs and face different challenges.
How do I install it ?
It's very simple, it works like any other data packs, if you're not familiar with those just follow the steps:
- Download the .zip file
- As you create a new world in minecraft click on the top right tab "More"
- Click on "Data Packs"
- Click on the bottom left button "Open Pack Folder"
- Put the zipped file in that folder
- The pack should now appear in the "Available" list, click on the logo to put it in the "Selected" list
- Click on "Done"
- Click on create new world
- Select "Yes" on the warning screen
- Break the block !
How do I update it ?
It's very simple, just delete the old pack and replace it with the new one in your world's data_pack folder. None of your progress will be lost, but just in case, it's recommended to backup your world before updating!
I think I've encountered a bug / I have a question about the pack
You can contact me here: Discord
Important Note For 1.21.6 to 1.21.10 players
The 1.0.1 version of the pack for minecraft 1.21.6 to 1.21.8 and 1.21.9 to 1.21.10 is missing some files causing a soft lock in the phase 3 dimension. The 1.0.2 version of the pack fixes this problem, follow the steps, none of your progress will be lost :
- In minecraft, select your oneblock world in your world list and click "Edit" (bottom left)
- Click on "Open World Folder"
- Open the "datapacks" tab and delete the faulty 1.0.1 version
- Copy and paste the 1.0.2 version
- Close the tab and click on "Save" (bottom left)
- If you've already entered dimension 3 and opened the graveyard gate you'll need tu run the following command (copy and paste in the chat, then press enter) :
/setblock 14 72 -30 minecraft:trial_spawner{normal_config:"simply_oneblock:zombie",ominous_config:"simply_oneblock:ominous_zombie"}
If you can't run the command because they're not allowed in your world follow those steps :
- Open the game menu with "Escape"
- Click on "Open to LAN"
- Set "Allow command : On"
- Click on "Start LAN world" (bottom left)
- Run the command above
Available Versions
How to Install Simply OneBlock on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set datapack Loader
In the panel under "Egg", select the datapack loader and matching Minecraft version (26.1.2).
Install Mod
Open the mod browser in the dashboard and search for "Simply OneBlock". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
26.1.2, 26.1.1, 26.1 (+7 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Simply OneBlock server crashes on startup – what to do?
Most common cause: wrong datapack version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (26.1.2). You can switch loaders with one click in the panel.
Is Simply OneBlock compatible with datapack and fabric and forge and neoforge?
Simply OneBlock officially supports datapack, fabric, forge, neoforge for Minecraft 26.1.2, 26.1.1, 26.1. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Simply OneBlock – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Simply OneBlock consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
Rent Modded Server
Install Simply OneBlock with just one click on your server.