Chunk Courier
by CorsicanFrog
Chunk Courier keeps chunks loaded around minecarts that are travelling, so long rail journeys finish whether or not a player is nearby.
What it does
Minecarts in motion load the chunks along their route through NeoForge ticket-based chunk loading, and the chunks unload again once the cart moves on. The loading is tied to minecart movement and is server-authoritative, so a cart keeps running on a server with nobody close to it. Vanilla minecart types are supported out of the box, and each cart is tracked on its own even when several share a stretch of track.
The mod runs on a dedicated server, and it can also run in a singleplayer LAN host instance. It is server-side only: clients that join a server running Chunk Courier need the mod installed too, while a player playing alone on a host instance only needs it in that instance. Chunk Courier is published for Fabric and NeoForge, with the 1.0.0 builds for 1.21.1 released on 2026-03-21, and the code is not open source; it is released under All rights reserved, with public links for the source and the issue tracker.
Key features
Moving carts keep chunks loaded
Chunks along a minecart's route stay loaded while the cart moves, so contraptions that depend on chunk loading keep working.
Configurable load radius
The load radius and a minimum speed threshold can be set in the configuration, which controls how far around a moving cart chunks are kept active.
Independent handling of several carts
Multiple carts in the same area are each tracked on their own, so one cart's journey does not interfere with another's.
Vanilla minecart types
The standard minecart variants work without changes, so existing rail setups need no rebuilding.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
Minecarts Load Chunks is a server-required mod for Fabric, Forge, NeoForge and Quilt on 1.21.10, released under the MIT License. Chunk Courier is published for Fabric and NeoForge on 1.21.1 and is not open source. MinecartsLoadChunks is a server-side only Fabric mod for 1.21.4 – 1.21.7 under the MIT License and open source, so it covers different game versions. Darceno's Minecarts is open source under the MIT License and covers 1.20 – 1.21.1 across four loaders, with the server required and the client optional.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Chunk Courier | Fabric and NeoForge | 1.21.1 | Server-side only | 2026-03-21 |
| Minecarts Load Chunks | Fabric, Forge, NeoForge and Quilt | 1.21.10 | Server required, client optional | 2025-12-07 |
| MinecartsLoadChunks | Fabric | 1.21.4 – 1.21.7 | Server-side only | 2025-10-17 |
| Darceno's Minecarts | Fabric, Forge, NeoForge and Quilt | 1.20 – 1.21.1 | Server required, client optional | 2025-05-08 |
Questions
Does Chunk Courier need to be installed on clients?
Which loaders does Chunk Courier support?
Can the load radius be changed?
In the catalog
Chunk Courier is one of 3,932 Transportation mods on ModsFinder, and one of 2,390 Transportation mods for Fabric. 32,366 mods support Minecraft 1.21.1.
More from CorsicanFrog
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What the author says
Ever built a long minecart line, only to find your cart stopped halfway because the chunks unloaded? Chunk Courier fixes that. It automatically keeps chunks loaded around any moving minecart, so your carts complete their journeys whether you're watching or not.
Official listing
- Modrinth page
- modrinth.com/mod/chunk-courier
- Owner
- CorsicanFrog
- Published
- 2026-03-21
- Updated on Modrinth
- 2026-03-21
- Facts verified
- 2026-10-15