
Oneblock
A "Oneblock" is a variant of the popular game Minecraft. In this mode, players start on a single floating block in the void.
About this Mod

Oneblock is a server-side Data Pack / Mod that add a variant of the popular game Minecraft, designed as a challenge for players.
In this mode, players start on a single floating block in the void.
📌 Goals
The goal is to survive and thrive starting from this one block:
🛠️ Building: Expand your island by creating structures, farms, and automation systems.
🍃 Survival: Manage limited resources, avoid falling into the void, and deal with any mobs that might spawn.
👷♀️ Progression: Advance through the various phases of the game by gathering increasingly advanced resources.

Starting Block: The player begins on a single block of dirt or another material. This block is the only thing preventing the player from falling into the void.
Block Regeneration: When the player breaks the initial block, another block appears in its place. These blocks can be of different types (dirt, wood, stone, ores, etc.) and sometimes generate useful resources or items.
Website
If you have any questions, need assistance, or simply want to share your thoughts or feedback, feel free to reach out. We're always here to help and would love to hear from you – whether you're looking for answers, suggestions, or just want to let us know how we're doing.

Other links
Available Versions
How to Install 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 (1.21.10).
Install Mod
Open the mod browser in the dashboard and search for "Oneblock". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.10, 1.21.9, 1.21.8 (+8 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
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 (1.21.10). You can switch loaders with one click in the panel.
Is Oneblock compatible with datapack and fabric and forge and neoforge and quilt?
Oneblock officially supports datapack, fabric, forge, neoforge, quilt for Minecraft 1.21.10, 1.21.9, 1.21.8. 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 Oneblock – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if 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.
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Rent Modded Server
Install Oneblock with just one click on your server.