Sanctuary

Sanctuary is a Fabric world preset for Minecraft 1.21.11 that transforms the Overworld into a floating-island world centered around a handcrafted survival spawn zone.

Start in a curated central sanctuary, then travel outward into a vast procedural skyworld of islands, ruins, caves, and distant horizons.

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Features

• Floating-island Overworld preset
• Handcrafted central survival zone near spawn
• Custom island generation with multiple landform presets
• Curated biome area around origin
• Procedural floating islands farther from spawn
• World creation customization screen
• Friendly with many biome-expansion mods
• Vanilla survival focused

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World Design

Sanctuary blends three generation layers:

1. Custom Central Island Generator
   Builds the main spawn landmass.

2. Sanctuary Biome Zone
   A controlled region near spawn for a stronger early-game experience.

3. Fallback Overworld Biome Source
   Expands naturally into broader procedural floating islands in the distance.

Safe start, dangerous horizon.

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Customization

When creating a world, Sanctuary includes configurable settings such as:

Shared Settings

• Main Island Preset
• Starting Biome
• Deepslate Core
• Vertical Profile
• Sanctuary Zone Scale
• Main Island Scale
• Archipelago Size
• Archipelago Spacing
• Sanctuary Gap

Main Island Presets

Monolith

A single massive central island.

Fractured Archipelago

Multiple broken islands clustered together.

Hollow Crown

A ring-shaped formation with a hollow center.

Spire Garden

A smaller hub surrounded by tall stone spires.

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Biome Mod Compatibility

Sanctuary is designed to work better with biome mods than with total worldgen overhauls.

Usually Compatible

• Mods that add Overworld biomes
• Datapacks extending vanilla biome distribution
• Surface biome packs

These biomes may appear:

• outside the Sanctuary zone
• in the Starting Biome selector (if safe for spawn)

Less Ideal

• Mods replacing the full Overworld generator
• Separate custom world preset mods
• Heavy terrain overhaul mods

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Requirements

• Minecraft 1.21.11
• Fabric Loader 0.19.1+
• Fabric API
• Java 21+

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Installation

Install like a normal Fabric mod.

Place the .jar file into your mods folder.

Multiplayer

Install the mod:

• on the server
• on all clients

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Notes

• Outer island transition is still being tuned
• Worldgen changes only affect newly generated chunks
• Ore distribution settings are planned for future updates

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Current Version

0.3.0