
Commander
An extension of the data pack system.
Screenshots

About this Mod
Commander
Checkout the wiki to learn more! https://constellation-mc.github.io/commander/
If you have a suggestion or a feature request, be sure to share it here: https://github.com/constellation-mc/commander/discussions/categories/ideas
Quick Introduction
Commander is an extension of the vanilla data pack system.
It adds a new event system:
{
"event": "commander:after_killed_by_other",
"commands": [
]
}
Flexible JSON commands:
{
"type": "commander:commands",
"selector": "commander:random_player",
"commands": [
"/cmd:explode ~ ~1 ~ 2"
]
}
New / commands:
cmd:arithmetica:/cmd:arithmetica "round(346.45, 1)"cmd:explode:/cmd:explode ~ ~ ~ 4
Support for advanced expressions with data access:
minecraft:this_entity.isInWaterOrRain
/say ${{ origin.x }}
There are no client-side features available, everything is done on the server.
Commander is still in beta, so things can change, develop, break.
Modpack creators, DO NOT INCLUDE the .commander folder!
Available Versions
How to Install Commander on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.1).
Install Mod
Open the mod browser in the dashboard and search for "Commander". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.1, 1.21, 1.20.4 (+1 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Commander server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.1). You can switch loaders with one click in the panel.
Is Commander compatible with fabric?
Commander officially supports fabric for Minecraft 1.21.1, 1.21, 1.20.4. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Commander – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Commander consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Rent Modded Server
Install Commander with just one click on your server.