World Generator

World Type: Flat World Infinite Single Biome Old World
Flat Layers Loading template... + Add Layer
Additional Settings Biome: ocean Loading biomes...
Infinite World Biome: ocean Loading biomes... World Seed:
Old Width (in chunks): Depth (in chunks): Center X: Center Z: World Seed: This generation is no longer supported and very likely to break. Use it at your own risk!
Download .mcworld

World Generator allows you to download a .mcworld containing a world that can't be created in vanilla Minecraft.

Note: You will have to upgrade your world to 1.18+ after you import it. Disable making a backup and you should be good to go!