No Overworld Generation
by snowylol_
No Overworld Generation stops new natural terrain from forming in the Overworld, so freshly explored areas come out as empty void.
What it does
Newly generated Overworld areas contain no terrain and no structures; spawn-area chunks and the default chunks already in a world are left as they are. The mod suits servers and creative projects that provide their own content and do not want new terrain beyond it. It runs on the server alone: players join without installing anything. Files are published for Fabric only, for 1.21.11, under the MIT License, and the source code is public.
Key features
Empty Overworld chunks
Chunks generated after the mod is installed are void, with no terrain or structures appearing in them.
Existing terrain preserved
Spawn area and default chunks keep the terrain they already have, so only newly explored regions change.
Built for custom maps
Premade maps that need strict control over world boundaries can be kept free of unplanned generated land.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
Ultimate Scaler is a Fabric server-side mod for 1.21 – 1.21.8 under the MIT License, and its source is public. Mega World Height is also server-side only and covers 1.21.1 – 1.21.11 under the MIT License, but its source is not listed as open.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| No Overworld Generation | Fabric | 1.21.11 | Server-side only | 2026-02-08 |
| Ultimate Scaler | Fabric | 1.21 – 1.21.8 | Server required, client optional | 2025-09-17 |
| Mega World Height | Fabric | 1.21.1 – 1.21.11 | Server-side only | 2026-06-13 |
Questions
Does No Overworld Generation need to be on the client?
Do existing chunks change after installing the mod?
In the catalog
No Overworld Generation is one of 8,515 World generation mods on ModsFinder, and one of 4,027 World generation mods for Fabric. 19,862 mods support Minecraft 1.21.11.
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What the author says
NoWorldGen is a simple Minecraft mod (Fabric, 1.21.11 only) that completely removes natural overworld terrain generation. With NoWorldGen, all newly generated areas in the overworld will be empty void—no terrain or structures will appear. This makes NoWorldGen ideal for: - Custom maps where you need the overworld to…
Official listing
- Modrinth page
- modrinth.com/mod/no-overworld-generation
- Owner
- snowylol_
- Published
- 2026-02-08
- Updated on Modrinth
- 2026-02-08
- Facts verified
- 2026-10-15