How to Use the Bedrock Custom Super Flat Generator

Updated

The Bedrock Custom Super Flat Generator at superflat.crackedmagnet.com is a browser-based form that produces the world name, seed, and biome values you enter when creating a custom super flat world in Minecraft Bedrock. To use it, pick a world type, fill in the options you want, and press Generate — then copy those values into Minecraft's world creation screen. It only outputs settings; it does not create or download a world file.

What the tool actually does

The page is a single configuration form. Its visible controls are:

  • World type selector — a dropdown labeled -- Select World Type -- with the options Custom Super Flat and Single Biome
  • Add World Name — a field for naming the world
  • Prevent Slimes Spawning — a toggle for the slime-spawn setting
  • Seed — a field for the world seed
  • Biome — a field for the biome
  • Generate — the button that produces the output

The form appears twice in the page source: once as the full set of controls and once as a shorter block containing World Name, Seed, Single Biome, and Generate. Treat the full form as the one to fill in; the shorter block is a duplicate of the same inputs.

Step-by-step

  1. Choose a world type. Open the -- Select World Type -- dropdown and pick Custom Super Flat if you want to define your own flat layers, or Single Biome if you want a flat world dominated by one biome. The tool does not expose a layer editor, so the layer stack itself is still set inside Minecraft.
  2. Enter a world name in the Add World Name field. Use a name you'll recognize later, since this is what you'll type into Minecraft.
  3. Decide on slimes. Set Prevent Slimes Spawning according to whether you want slimes in your flat world. Slimes spawn in swamp biomes and in "slime chunks" at low light levels, which is often unwanted in a build-focused flat world.
  4. Enter a seed in the Seed field. Any text or number works; the same seed reproduces the same world.
  5. Enter a biome in the Biome field. Use a biome name you can match in Minecraft's own biome picker.
  6. Press Generate. The tool returns the world name, seed, and biome values to use.
  7. Apply the values in Minecraft Bedrock. Start a new world, set the world type to Super Flat (or Flat World), and enter the generated name, seed, and biome in the matching fields. Enable the slime setting you chose if Minecraft offers it for your version.

Verify it worked

After creating the world, check three things: the world appears in your world list under the name you generated, the terrain is flat, and the biome matches what you entered (check the sky color, grass tint, or the biome readout in the debug/settings screens). If the biome looks wrong, the most common cause is a name mismatch — re-enter the exact biome string the generator gave you.

Common snags

  • Nothing happens on Generate. Make sure a world type is selected; the dropdown starts on the placeholder -- Select World Type --, which is not a valid choice.
  • The biome doesn't match. Minecraft's biome names must match exactly. Copy the generated value rather than retyping it.
  • Slimes still appear. The prevent-slimes option is a world setting; confirm it is enabled in Minecraft's own world options, not just in the generator.
  • The world isn't flat. The generator supplies name, seed, and biome only. The flat layer configuration (bedrock, dirt, grass, and so on) is set in Minecraft's super flat customization screen.

The page shows no pricing, account, or download prompts, so there is nothing to purchase or install to use it.