Skylands Over The Sea Mod (1.21.10, 1.20.1) – Floating Island Terrain
October 18, 2025 
Skylands Over The Sea Mod is a world generation mod that restructures the overworld into floating islands while relocating all ocean biomes beneath them. Cave systems and underground biomes remain present but are generated beneath the ocean layer.
Features:
- Replaces standard terrain with floating islands suspended above the ocean layer.
- All ocean biomes are generated directly beneath the islands, forming a continuous water mass at lower altitudes.
- Cave networks and underground biomes spawn below the ocean, retaining full ore and structure availability.
- Introduces a vertical progression from sky-based terrain to underwater exploration.
Screenshots:
How to Install:
New to Minecraft? Follow our step-by-step guide to install Mods on your PC.View Guide
Requirements:
Skylands Over The Sea Mod Download Links
For All Versions from Minecraft 1.20 to Minecraft 1.21.8
Forge/Fabirc/Quilt/NeoForge Version: Download from Server 1 – Download from Server 2
For All Versions from Minecraft 1.20 to Minecraft 1.21.10, 1.21.9
Forge/Fabirc/Quilt/NeoForge Version: Download from Server 1 – Download from Server 2
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hi, i really wanna try this in survival with friends! do surface structures generate commonly? or are they much rarer? im just worried about finding villages, woodland mansions, etc.