Getting Started with Mirror Chunks

How Mirror Chunks Works

Mirror Chunks automates repetitive building by duplicating your actions across all loaded chunks simultaneously. When you place a block, break a block, use a bucket, activate a lever or button, or use a spawn egg, that exact action happens at the same coordinates in every other loaded chunk.

This is useful for large server projects requiring repeating patterns—till soil with a hoe once and it tills everywhere, place water once and it spreads to all chunks, trigger a mechanism once and it activates globally.

Important Limits

Only loaded chunks receive instant copies. Unloaded chunks store your changes and apply them when players load nearby. Each dimension (Overworld, Nether, End) maintains separate records, so changes never cross between worlds.