Chunky (Fabric)

A mod for pre-generating chunks - quickly, efficiently, and safely

Main Features

• Launch multiple chunk generation tasks simultaneously for maximum CPU utilization
• Ability to pause generation tasks with progress saved for later continuation
• Detailed statistics: processed chunks, completion percentage, remaining time, processing speed
• Support for various world generation shapes and compatibility with world borders when ChunkyBorder addon is installed

Permission Requirements

To use the mod you need to:

• Be an operator on a dedicated server (command op <username> in server console)
• Play in a singleplayer world (in older versions cheats may need to be enabled via world settings or "Open to LAN" button)

Command Management

Task Management

• chunky start — start new generation task from current selection
• chunky pause — pause current tasks with progress saved
• chunky continue — continue current or saved generation tasks
• chunky cancel — stop current tasks without saving progress

Area Configuration

• chunky world [world] — select current world
• chunky shape — set generation shape
• chunky center [ ] — set center point
• chunky radius — set generation radius
• chunky worldborder — automatic configuration based on world borders
• chunky spawn — set center at spawn point
• chunky corners — define area by corner coordinates
• chunky pattern — select generation pattern
• chunky selection — display current area settings

Additional Commands

• chunky silent — toggle update message display
• chunky quiet — set quiet interval in seconds
• chunky progress — display generation progress in-game
• chunky reload — reload configuration
• chunky trim — delete chunks outside selected area

Usage Examples

Generate square area centered at 0,0 with 1000 block radius in overworld:

chunky radius 1000
chunky start

Generate circular area centered at spawn in Nether with 1000 block radius:

chunky world the_nether
chunky shape circle
chunky spawn
chunky radius 1000
chunky start

Generate inside world borders centered at 0,0 with 10000 block radius:

worldborder center 0 0
worldborder set 20000
chunky worldborder
chunky start

Useful Links

• Discord — ask questions in #chunky channel
• Crowdin — help translate the mod into different languages
• bStats — mod usage statistics
• CodeMC — download latest builds
• ChunkyBorder — addon for custom world borders

Screenshots

Example of pre-generated square world with 2000 block radius

Simultaneous generation of three worlds on Ryzen 3700X processor with 16GB RAM