How do I configure FlatBedrock for custom dimensions?

Navigate to your /config/flatbedrock/dimensions/ folder and create a new JSON file for that dimension. Copy the structure from overworld.json or nether.json, then change the dimID to your dimension's ID and adjust the genTop, genBottom, and fillBlock settings.

Does FlatBedrock work with modded dimensions?

Most modded dimensions work fine. You just need to create a config file for them with the correct dimension ID.

Is FlatBedrock free to download?

Yes, it's completely free. Just grab it from 1Minecraft using the download links above.

FlatBedrock Mod 1.12.2, 1.11.2 - Flat Bedrock

Q: Can I use FlatBedrock on an existing world?

Yes, but back up your world first. Then set retroGenTop and retroGenBottom to true in the dimension's config file. Load your world and the bedrock will flatten retroactively.

Q: What block replaces the bedrock?

You control this with the fillBlock setting in your JSON config. It defaults to stone for the Overworld, but you can change it to any block you want like end stone, obsidian, or air.

FlatBedrock Edition Mod

FlatBedrock is a simple Forge mod that replaces those annoying jagged bedrock layers with flat ones. You can generate flat bedrock in the Overworld, Nether, or any custom dimension you add. Configure which layers get flattened with a couple JSON files in your config folder.

What It Does

By default, the mod flattens the bottom bedrock layer in the Overworld and both the top and bottom bedrock layers in the Nether. Want different dimensions? Just create a JSON config file and you’re done. It works with most modded dimensions too.

Overworld: Flattens the bottom bedrock layer

Nether: Flattens both the floor and ceiling bedrock

Custom Dimensions: Add support for any modded dimension

Configuration

Open /config/flatbedrock/dimensions/ and you’ll find overworld.json and nether.json. Edit these files to control which layers get flattened and what block replaces the bedrock.

Each dimension file looks like this:

{
  "dimID": 1,
  "genTop": false,
  "genBottom": true,
  "retroGenTop": false,
  "retroGenBottom": false,
  "fillBlock": "minecraft:stone"
}

dimID is the dimension’s numerical ID. genTop and genBottom toggle which layers get flattened. Set fillBlock to change what block replaces the bedrock (stone for Overworld, end stone for The End, etc).

Add Modded Dimensions

Have a mod that adds new dimensions? You can flatten bedrock there too. Copy one of the default config files and rename it (like twilightforest.json). Then edit the dimID to match your dimension and adjust the settings.

Retroactive Generation

Already have a world you love? No problem. Back up your world first, then change retroGenTop and retroGenBottom to true in the dimension’s config file. Load your world and the bedrock will flatten retroactively.

Requirements

Minecraft Forge

How to Install

How To Download & Install Mods with Minecraft Forge

How To Download & Install Fabric Mods

Check out more Minecraft Mods on 1Minecraft.