Overworldify

Datapack that creates Nether and End dimensions that use the default overworld terrain.

11.7K Downloads

datapackfabricforgeneoforgequiltcursedworldgen

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About this Mod

Overworldify

This is a silly cursed world generation datapack I have made that makes the Nether and End Dimension have the same terrain shape and height as the Overworld.

Notice: Not compatible with biome mods; structure mods may be weird.

Currently not compatible with biome mods due to how this is made.

Additionally, due to the method needed for this worldgen to work, it is slow. I may make a fully modded version in the future that makes it generate faster.

Smart Adjustments

Further adjustments have been made to ores, structures, and features so that they work properly (e.g, ancient debris still generates most frequently at the bottom of the world).

Available Versions

[MOD 1.20-1.21.10] Overworldify 1.1.8release

MC 1.20, 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10fabric, forge, neoforge, quilt

October 17, 2025

[DP 1.20-1.21.10] Overworldify 1.1.8release

MC 1.20, 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10datapack

October 17, 2025

[MOD 1.20-1.21.8] Overworldify 1.1.7release

MC 1.20, 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8fabric, forge, neoforge, quilt

August 8, 2025

[DP 1.20-1.21.8] Overworldify 1.1.7release

MC 1.20, 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8datapack

August 8, 2025

[1.20-1.21.4] Overworldify 1.1.6 [MOD]release

MC 1.20, 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4fabric, forge, neoforge, quilt

December 5, 2024

How to Install Overworldify on Your Server

Order Server

Order a Minecraft Java server with at least 4 GB RAM (6 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 "Overworldify". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

datapackfabricforgeneoforgequilt

Minecraft Versions

1.21.10, 1.21.9, 1.21.8 (+20 more)

Server-side

✓ Required

Recommended RAM

6 GB(min. 4 GB)

Frequently Asked Questions

Overworldify 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 4 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 Overworldify compatible with datapack and fabric and forge and neoforge and quilt?

Overworldify 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 Overworldify – how to optimize performance?

Recommended RAM: 6 GB (per 5 players). Use /spark profiler to check if Overworldify 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.