Sky World

The overworld becomes a vertical sea of floating islands. Aether-style continents scattered across a 150-block-tall band — explore up, down, and across a sky archipelago instead of solid ground. Powered by Isekai API.

What it does

Sky World overlays the overworld's terrain with scattered floating islands distributed through a tall vertical band (active roughly Y 50–200), so the world reads as a true 3D archipelago — islands above you, below you, and off into the distance, with cloud layers between them. Every vanilla biome, ore, structure, and mob is remapped into the island volume by Isekai API, so the world still feels like Minecraft — just airborne.

It also ships a standalone Sky Realm dimension (/execute in sky_world:skyrealm) — the same island generation as its own world you can travel to, leaving the overworld free for other mods if you prefer.

Features

Vertical floating-island overworld — continents across a wide Y band, not a thin shell. Curved island undersides, varied biomes, real depth.

Vanilla content preserved — ores, structures, and mobs are remapped into the islands, no empty void worlds.

Ocean and cliff cleanup — ocean monuments, shipwrecks, ruins, and edge-leaking springs are excluded so islands stay clean.

Sky Realm dimension — a separate dimension with the same island generation, for packs that want a normal overworld.

Requires

Isekai API (required) — Sky World is a datapack-style worldshape built entirely on Isekai's worldgen primitives.

Compatibility

Coexists with TerraBlender, YUNG's structure mods, map mods (Journeymap etc.), and dimension mods like Nullscape — tested in-game.

Mutually exclusive with other overworld-overhaul mods (Terralith, William Wythers') — only one mod can own the overworld. No crash; last-loaded wins. To run alongside another overworld overhaul, use Sky World's Sky Realm dimension and let the other mod own the overworld.

License and links

MIT. Source and issues: https://github.com/KURONAMI333/sky-world

Built on Isekai API.

The overworld becomes a vertical sea of floating islands. Aether-style continents scattered across a 150-block-tall band — explore up, down, and across a sky archipelago instead of solid ground. Powered by Isekai API.

What it does

Sky World overlays the overworld's terrain with scattered floating islands distributed through a tall vertical band (active roughly Y 50–200), so the world reads as a true 3D archipelago — islands above you, below you, and off into the distance, with cloud layers between them. Every vanilla biome, ore, structure, and mob is remapped into the island volume by Isekai API, so the world still feels like Minecraft — just airborne.

It also ships a standalone Sky Realm dimension (/execute in sky_world:skyrealm) — the same island generation as its own world you can travel to, leaving the overworld free for other mods if you prefer.

Features

Vertical floating-island overworld — continents across a wide Y band, not a thin shell. Curved island undersides, varied biomes, real depth.

Vanilla content preserved — ores, structures, and mobs are remapped into the islands (no empty void worlds).

Ocean / cliff cleanup — ocean monuments, shipwrecks, ocean ruins, and edge-leaking springs are excluded so islands stay clean.

Sky Realm dimension — a separate dimension with the same island generation, for packs that want a normal overworld.

Requirements

Isekai API is required — Sky World is a datapack-style worldshape built entirely on Isekai's worldgen primitives.

Compatibility

Coexists with TerraBlender, YUNG's structure mods, map mods (Journeymap etc.), and dimension mods like Nullscape — tested in-game.

Mutually exclusive with other overworld-overhaul mods (Terralith, William Wythers') — only one mod can own overworld.json. No crash; last-loaded wins. To run alongside another overworld overhaul, use Sky World's Sky Realm dimension instead and let the other mod own the overworld.

License & links

Related projects

• Isekai API — required worldgen framework these worlds are built on
• Mountain World — sister world: the overworld reforged as endless mountains
• Tropical World — sister world: the overworld as a sunlit tropical sea with sandy islets
• Tundra World — sister world: the overworld frozen end to end

MIT. Source & issues: https://github.com/KURONAMI333/sky-world

Built on Isekai API.