Bossbar Expansion
This data pack/Mod add bossbar to minibosses in the game like Warden, Elder Guardian and Evoker.
Screenshots
About this Mod
About
This data pack/Mod add bossbar to minibosses in the game like Warden, Elder Guardian and Evoker.
settings
You can disable any bossbar or uninstall the data pack on the settings, run this command to open the settings:
/function bbe:settings
Warden
Warden's bossbar will appear if the player is within 40 blocks of the Warden.
Elder Guardian
Elder Guardian's bossbar will appear if the player is within 15 blocks of the Elder Guardian.
Evoker
Evoker's bossbar will appear if the player is within 10 blocks of the Evoker.
Available Versions
How to Install Bossbar Expansion on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set datapack Loader
In the panel under "Egg", select the datapack loader and matching Minecraft version (1.21.8).
Install Mod
Open the mod browser in the dashboard and search for "Bossbar Expansion". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.8, 1.21.7, 1.21.6 (+18 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Bossbar Expansion server crashes on startup – what to do?
Most common cause: wrong datapack 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 (1.21.8). You can switch loaders with one click in the panel.
Is Bossbar Expansion compatible with datapack and fabric and forge and neoforge and quilt?
Bossbar Expansion officially supports datapack, fabric, forge, neoforge, quilt for Minecraft 1.21.8, 1.21.7, 1.21.6. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Bossbar Expansion – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Bossbar Expansion 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.
Similar Mods
Rent Modded Server
Install Bossbar Expansion with just one click on your server.