Why Loaded - Chunk Loading Diagnostics

Find out why a Minecraft chunk is still loaded. Why Loaded is a lightweight, server-side diagnostic mod for Minecraft 1.21.1 on NeoForge. It shows chunk-loading tickets and available controller and owner information, helping server admins investigate forced chunks without changing them.

See what keeps a chunk loaded

Run /whyloaded while standing in a chunk to inspect its active tickets, ticket levels, effective chunk status, and available forced-chunk controller and owner details.

Find the largest forced-chunk counts

Run /whyloaded top to rank forced chunks by controller and owner in each dimension. See distinct chunk totals and ticking/non-ticking counts. You can also run whyloaded top from the server console.

Built for server administration

• Read-only diagnostics: does not remove tickets, unload chunks, or change chunk-loading settings.
• Server-side installation: players do not need to install the mod on their clients.
• Commands are intended for operators with permission level 2.
• Owner details depend on the information available from the server. Some owners may be unknown or unsupported.
• Rankings count forced chunks, not CPU usage or lag. A chunk can be shared by more than one owner.

Installation

Requires Minecraft 1.21.1, NeoForge and Java 21. The target NeoForge version is 21.1.265.

1. Place whyloaded-1.0.0.jar in your dedicated server's mods folder.
2. Restart the server.
3. Use /whyloaded in-game or whyloaded top in the server console. Why Loaded explains chunk loading; it is not an automatic lag fix or chunk-unloading tool.