What Is the Bedrock Custom Super Flat Generator?

Updated

The Bedrock Custom Super Flat Generator at superflat.crackedmagnet.com is a web tool for setting up a Minecraft Bedrock Edition super flat world. Instead of building a flat world from scratch in-game, you pick your world type, biome, and options on the page, then use the generated name, seed, and settings when creating the world in Minecraft. It is aimed at players who want a controlled flat starting map — for building, testing, or a specific biome look — without manually tuning world settings.

What the tool lets you configure

The page presents a short form with these controls:

Control What it does
World type selector (-- Select World Type --) Choose between Custom Super Flat and Single Biome
World name field Sets the name for the generated world
Prevent Slimes Spawning Toggle to stop slimes from appearing
Seed field Sets the world seed
Biome field Sets the biome for the world
Generate button Produces the world name, seed, and biome output

The two world types serve different purposes. Custom Super Flat is for a classic flat world where you control the layer setup. Single Biome is for a flat world locked to one biome, which is useful when you want a consistent landscape — for example, an all-desert build area or an all-snow survival test.

How to use it

  1. Open superflat.crackedmagnet.com.
  2. Select a world type from the dropdown: Custom Super Flat or Single Biome.
  3. Enter a world name.
  4. Optionally enable Prevent Slimes Spawning if you don't want slimes in the world.
  5. Enter a seed, or leave it to be generated.
  6. Choose a biome.
  7. Click Generate.
  8. Take the resulting world name, seed, and biome values and enter them when creating a new world in Minecraft Bedrock Edition.

Expected result: you get a matching set of settings to plug into the Bedrock world creation screen, so the world you create matches what you configured on the page.

Things to watch for

  • Bedrock only. The tool is built for Minecraft Bedrock Edition settings; the same values won't necessarily behave the same way in Java Edition.
  • Copy the values exactly. The seed and biome need to match what the generator outputs, or the world won't match your intended setup.
  • Slime toggle is a choice, not a default. If you want slimes for farms or mob behavior, leave it off; enable it only if you want them gone.
  • The page is a configurator, not a world editor. It gives you settings to enter in Minecraft — it doesn't modify an existing world.

If you just want a plain flat world with no fuss, the default Custom Super Flat option with a name and seed is enough. If you want a specific biome across the whole map, switch to Single Biome and set the biome field before generating.