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Expanded Building

Expanded Building lets you plan large survival builds in a protected Creative mode first and then have them built for real – with real materials, by a builder NPC, one block at a time.

You mark out a building site with the Builder's Wand, design your project freely in a temporary Creative planning mode, and when you are done the world is put back exactly as it was. What stays is a glowing blueprint of your design. Hand the required materials to the Builder, press Start building, and watch him clear the ground and put up your build block by block.

Highlights

• Protected Creative planning – plan with unlimited blocks, dig cellars, level terrain. Your survival inventory and game mode are backed up to disk first and restored afterwards.
• Real survival cost – the builder only builds with materials you actually hand in. Nothing is free, nothing can be duplicated.
• Readable ghost blueprint – doors, stairs, fences, torches, chests and more are drawn with their own shape, colour and facing.
• Builder NPC with a dashboard – material list, progress, remaining time, selectable build speed.
• Material chest – point the builder at a chest (even one fed by a hopper) and he takes what he needs.
• Save and share blueprints – as .json, or import/export Litematica (.litematic) and WorldEdit (.schem) files.
• Edit a plan later – even in the middle of construction; blocks that are already built are never charged twice.
• Multiplayer – let friends work on your project; sites are visible to everyone nearby.
• Server-authoritative anti-dupe design – every action is validated on the server.

Supported versions

Minecraft	Fabric	NeoForge	Forge
26.3	✅	✅	⏳ waiting for a Forge release
26.2	✅	✅	✅
26.1.2	✅	✅	✅

Current mod version: 1.1.1. The game logic is identical on all loaders.

Wiki pages

Getting started

• Installation
• Getting Started – your first project, step by step

Playing

• Planning Mode
• The Builder – dashboard, materials, chests, speed and wage
• Blueprints – saving, sharing and positioning
• Litematica and WorldEdit
• Multiplayer
• Site Protection

Reference

• Commands
• Configuration
• Limitations
• FAQ and Troubleshooting
• Version History