AtomiCoffe
Bring your server to life with Lua. Atomicoffe is a Fabric scripting mod that lets you add custom commands, events, recipes, loot tables, HUDs, and more all in hot-reloadable Lua scripts.
- Loaders
- Fabric
- Downloads on Modrinth
- 143
- Followers on Modrinth
- 2
- version
- 1
- Updated
- March 20, 2026Mar 20
- Published
- in 2026
At a glance
Needed both in the game and on the server
Atomicoffe
Atomicoffe is a Fabric mod that embeds a full LuaJ scripting engine into your Minecraft server and client. Write scripts once, reload them live with /atomicoffe reload no restarts, no recompiling, no Java required.
What can you do with it?
- Custom commands register Brigadier commands directly from Lua
- Event hooks react to player join/leave/death, block interactions, entity kills, chat, ticks, and more
- Recipes add or modify shaped and shapeless crafting recipes at runtime
- Loot tables inject drops into any vanilla loot table
- Scoreboard create objectives and read/write scores from scripts
- Per-player persistent data save and load arbitrary key/value data per player UUID
- Scheduling run callbacks after N ticks or on a repeating interval
- Networking send custom packets between server scripts and client scripts
- Tags add items/blocks to vanilla tags at startup (affects recipes, mechanics, etc.)
- Mob effects apply, remove, and query potion effects from Lua
- Client HUD draw text and rectangles on the player's screen
- Client keybinds register keybinds that trigger Lua callbacks or send packets to the server
Script Phases
| Folder | When it runs |
|---|---|
startup_scripts/ | Before the server starts for tag/registry changes |
server_scripts/ | When the server starts and after every /reload |
client_scripts/ | On the client HUD, keybinds, client-side events |
All scripts live in your instance's config/atomicoffe/ folder and are hot-reloadable.
Quick Example
-- config/atomicoffe/server_scripts/welcome.lua
onEvent("player.join", function(e)
e.player.tell("§aWelcome, §e" .. e.player.name .. "§a!")
e.player.give("minecraft:bread", 8)
end)
command.register("ping", function(ctx)
ctx.reply("Pong! TPS: " .. server.getTps())
end)
schedule.every(6000, function() -- every 5 minutes
server.broadcast("§b[Info] §fNeed help? Check our Discord!")
end)
FAQ
How to install AtomiCoffe?
Install Fabric for your Minecraft version, download AtomiCoffe for the same version and loader, put the file into the mods folder and launch the game with the loader profile.
Which Minecraft versions does AtomiCoffe support?
AtomiCoffe has builds for Minecraft 1.21.11.
Is AtomiCoffe needed on the server?
Needed in the game and on the server