The Flatworld
The Flatworld is a new dimension where you can build whatever you want in a superflat world-like environment with no mobs, structures or weather!"
Screenshots
About this Mod
Ever wanted to just build to express your creativity, but
terrain was in your way?
Let that problem dissappear, by going into the Flatworld!
The Flatworld is a superflat world-like environment with no mobs, structures or weather!
Instructions on how to access the Flatworld
- Gather a lot of Slimeballs
- Smelt Slimeballs in a furnace to gather Molten Slimeballs
- Craft Thick Slime Blocks using a regular Slime Block surrounded by 8 Molten Slimeballs
- Create a Dimension Anchor Block using a Thick Slime Block, a Molten Slimeball, three Amethyst Shards and four Planks.
- Enter the Flatworld!
The Flatworld consists of 16 layers of blocks:
- Grass -> 1st Layer
- Dirt -> 2nd-4th Layer
- Stone -> 5th-8th Layer
- Deepslate -> 9th-14th Layer
- Bedrock -> 15th-16th Layer
Hope you enjoy it!
Available Versions
How to Install The Flatworld on Your Server
Order Server
Order a Minecraft Java server with at least 4 GB RAM (6 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.11).
Install Mod
Open the mod browser in the dashboard and search for "The Flatworld". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.11, 1.21.10, 1.21.9 (+1 more)
Server-side
✓ RequiredRecommended RAM
6 GB(min. 4 GB)Frequently Asked Questions
The Flatworld server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 4 GB RAM is allocated and the loader matches the mod version (1.21.11). You can switch loaders with one click in the panel.
Is The Flatworld compatible with fabric?
The Flatworld officially supports fabric for Minecraft 1.21.11, 1.21.10, 1.21.9. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with The Flatworld – how to optimize performance?
Recommended RAM: 6 GB (per 5 players). Use /spark profiler to check if The Flatworld 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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