Sky Archipelago
by Sathrek
With Sky Archipelago installed on a NeoForge server, a world can be generated as floating islands spread over open sky, with the layout set in the server configuration.
What it does
Sky Archipelago introduces a floating-islands generator for Minecraft 1.21.1, selected as the Sky Island world type and adjustable through its Customize configuration. The mod is built toward Create Aeronautics airship gameplay and supports only NeoForge 1.21.1.
To create such a world, the level-type in server.properties is first set to sky archipelago:sky islands. After the server has run once, values from the preset can be pasted into sky archipelago-common.toml in the config folder. The Export Dedicated button or the in-game command skyarchipelago preset export dedicated copies a preset to the clipboard for this purpose. Presets save a configuration so it can be shared with others, and each preset can carry an optional description.
Only the server needs Sky Archipelago, since it is server required with an optional client side, so players may leave it out. It is released under All rights reserved, so it is not open source. Files are published for NeoForge only, with the latest file, 1.3.6, covering 1.21.1 and dated 2026-08-16. The first release came out on 2026-04-21.
Key features
Island spawning density
Island spawning density and the spacing of cluster islands can be set, which controls how crowded the sky looks.
Island sizing modes
Islands can be sized randomly within a min and max roll, or set to small, medium and large with separate min and max weights.
Island height range
A minimum and maximum Y range controls where islands may spawn, and spawning brackets can be defined as well.
Island archetypes and shapes
Archetype toggles and weighting pick the island types, with Classic islands as the default shape, and a toggle relaxes structure spawning rules.
Structure placement logic
The mod runs its own structure spawning logic, which tries to place structures on islands more suitably.
Commands for operators
Three in-game commands are available, and only operators can use them.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Questions
Does Sky Archipelago need to be installed on the client?
How is a world set to use the sky islands generator?
Which game version and loader does Sky Archipelago support?
In the catalog
Sky Archipelago is one of 8,515 World generation mods on ModsFinder, and one of 4,175 World generation mods for NeoForge. 32,366 mods support Minecraft 1.21.1.
Similar mods
What the author says
Sky Archipelago adds a new floating-islands world generation type for Minecraft 1.21.1, with configurable island shapes, height distribution, ocean layer options, and structure placement rules and much more! While intended for sky island world generation, it is more than capable of creating ocean worlds with islands…
Official listing
- Modrinth page
- modrinth.com/mod/sky-archipelago
- Owner
- Sathrek
- Published
- 2026-04-21
- Updated on Modrinth
- 2026-08-16
- Facts verified
- 2026-10-15