Tall Peaks

Tall Peaks datapack for Minecraft: Java Edition 1.18

This datapack sets the size of the Overworld's topslide to zero, allowing terrain to generate higher than normally possible.

Essentially: This stops mountain peaks from being cut off around y 256

Seed 8634976710093544852 in Vanilla 1.18:

With the datapack enabled:

Additionally, the non-lite version adds an extra 64 blocks of building space at the top of the world, bringing the total world height up to 448 blocks, spanning from y -64 to y 384

If the non-lite version seems too laggy, give the lite version a try!

Installation

For Singleplayer

1. Download TallPeaks or TallPeaksLite from the releases tab on the right.
2. Begin creating a new world.
3. Press on the button labeled 'Data Packs'
4. Drag and drop the file you downloaded into the left column.
5. Press 'yes' on the pop-up that appears.
6. Press the arrow that appears when hovering over the datapack on the left column.
7. Press 'done', and modify any other world settings you would like to change.
8. Create the world, and press proceed on the pop-up that appears.
9. Enjoy your slightly taller mountains!

For Servers

1. Ensure that you have access to your server's files.
2. Download TallPeaks or TallPeaksLite from the releases tab on the right.
3. Open your world's folder (usually titled "world", create one titled "world" if it has not been created yet).
4. Open or create a folder titled "datapacks".
5. Move the file into this folder
6. Start the server.
7. Enjoy your slightly taller mountains!