Terralith Islands worldgen is an addon for Terralith, which add a dimension with Terralith floating islands. Travel between dimension by flying in the sky (require elytra, or any flying engine).

If you prefer to directly modify the overworld, instead of adding a dimension, look at Terralith Islands.

Installation

• Download this datapack
• Download the official Terralith.
• Create a new world and drag the datapacks upon world’s creation.
• Put the Terralith Islands on top (above Terralith).
• Make sure the spawn is correct, or replace it with /setworldspawn and /spawnpoint .

Islands intensities (Patreon feature)

You can chose islands intensity between 5 values: tiny, small, medium, large and massive. A different datapack can be downloaded for each intensity.

Patreon Supporters

• 1.21.11 (28/01/2026): Azerxim, Setsu-P, varinyc, nfnpgllxhn
• 1.21.9 v1 (10/10/2025): CYKLOPPS, Azerxim, varinyc, Setsu-P, Wani P, Lionel Felke

Patreon Version

The free versions are designed to be fun and fully playable. The Patreon version is for players and server owners who want more control, comfort, and flexibility through an in-game settings menu to tweak the parameters live, without file editing.

Becoming a Gold Patreon also means:

• Getting access to every Patreon versions of every projects.
• Getting your name listed in each project and on this page (see above).
• Supporting long-term development, updates, and new features 💛

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