Compatibility
Minecraft: Java Edition
26.2
1.21–1.21.6
1.20.6
Platforms
Supported environments
Server-side
Singleplayer
Tags
Creators
Details
Fireflies can be found in the swamp and mangrove swamp biome at night
🏞️ Supported Custom Biomes:
- Terralith
- Biomes O' Plenty
- Regions Unexplored
- Terrestria
- William Wythers' Expanded Ecosphere
- Nature's Spirit
📚 Fireflies Settings
The easiest and recommended way to customize your experience is through the interactive chat menu!
- Open the Main Menu:
/function vanilla_fireflies:menu(Use this to quickly select pre-made modes or open the new visual Detailed Configuration dialog).
🛠️ Advanced (Manual Commands)
For users who prefer typing commands manually or want to use them inside command blocks, you can bypass the menu using the following functions:
- Quick Amount Change:
/function vanilla_fireflies:amount {amount:<integer>} - Fine-Tune Everything:
/function vanilla_fireflies:configure {amount:<integer>, speed:<float>, delta_x:<float>, delta_y:<float>, delta_z:<float>}
💡 Default Parameters Reference: If you ever need to reset or refer to the base settings, the defaults are:
amount: 60speed: 0.3delta_x: 40delta_y: 10delta_z: 40
📂Installing as datapack
- Download and install datapack in the world
- For a new world: You can click the "Data Packs" option when creating a new world and select this datapack
🔧Installing as mod
- Download and put mod in your
.minecraft/modsfolder
If you have any questions, bugs, suggestions you can create an issue on github or join our discord server


