Bossbar Expansion
by 01st
Bossbar Expansion gives mini-boss mobs a boss bar, in the style of the Warden, Elder Guardian and Evoker, and the mod is distributed as a data pack.
What it does
Mobs that the data pack marks as mini-bosses show a health bar on screen while a player is nearby, the same way the Warden and the Elder Guardian do. The bar lets players gauge a fight without checking the mob's health by hand. Installation runs through a data pack, and Bossbar Expansion is released for Fabric, Forge, NeoForge and Quilt across 21 release versions, 1.19 – 1.21.8, under All rights reserved.
Key features
Mini-boss health bars
Selected mobs show a boss bar with their remaining health while a player is in range.
Boss-style encounters
The bar frames a mob as a mini-boss, the way the Warden and the Elder Guardian are presented in vanilla.
Data pack delivery
The mod is also provided as a data pack, so servers can add the bars without a full mod install.
Gallery
Compatibility
Latest build for each game version and loader.
1.21.x9 of 9 versions with builds
1.20.x7 of 7 versions with builds
1.19.x5 of 5 versions with builds
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
Warden Bossbar is released under the GNU Lesser General Public License v3.0 or later and covers 1.20.3 – 1.20.6 on Fabric, Forge, NeoForge and Quilt. Upgraded Mobs is a server-side mod across 1.17 – 1.21.11, licensed under Creative Commons Attribution Non Commercial Share Alike 4.0.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Bossbar Expansion | Fabric, Forge, NeoForge and Quilt | 1.19 – 1.21.8 | Server required, client optional | 2025-07-21 |
| Warden Bossbar | Fabric, Forge, NeoForge and Quilt | 1.20.3 – 1.20.6 | Server required, client optional | 2024-12-25 |
| Upgraded Mobs | Fabric, Forge, NeoForge and Quilt | 1.17 – 1.21.11 | Server required, client optional | 2026-03-18 |
Questions
Does Bossbar Expansion need to be installed on the client?
Can Bossbar Expansion be used without a mod loader?
In the catalog
Bossbar Expansion is one of 11,058 Mobs mods on ModsFinder, and one of 5,189 Mobs mods for Fabric. 17,695 mods support Minecraft 1.21.8.
More from 01st
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What the author says
/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.
Official listing
- Modrinth page
- modrinth.com/mod/bossbar-expansion
- Owner
- 01st
- Published
- 2025-01-14
- Updated on Modrinth
- 2025-07-21
- Facts verified
- 2026-10-15
