ModsFinder

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.

FabricForgeNeoForgeQuiltServer required, client optionalAll rights reserved1.19 – 1.21.8

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

  1. Mini-boss health bars

    Selected mobs show a boss bar with their remaining health while a player is in range.

  2. Boss-style encounters

    The bar frames a mob as a mini-boss, the way the Warden and the Elder Guardian are presented in vanilla.

  3. Data pack delivery

    The mod is also provided as a data pack, so servers can add the bars without a full mod install.

Compatibility

Latest build for each game version and loader.

1.21.x9 of 9 versions with builds
1.21.81.0.1-Mod1.0.1-Mod1.0.1-Mod1.0.1-Mod
1.21.71.0.1-Mod1.0.1-Mod1.0.1-Mod1.0.1-Mod
1.21.61.0.1-Mod1.0.1-Mod1.0.1-Mod1.0.1-Mod
1.21.51.0.1-Mod1.0.1-Mod1.0.1-Mod1.0.1-Mod
1.21.41.0.1-Mod1.0.1-Mod1.0.1-Mod1.0.1-Mod
1.21.31.0.1-Mod1.0.1-Mod1.0.1-Mod1.0.1-Mod
1.21.21.0.1-Mod1.0.1-Mod1.0.1-Mod1.0.1-Mod
1.21.11.0.1-Mod1.0.1-Mod1.0.1-Mod1.0.1-Mod
1.211.0.1-Mod1.0.1-Mod1.0.1-Mod1.0.1-Mod
1.20.x7 of 7 versions with builds
1.20.61.0.1-Mod1.0.1-Mod1.0.1-Mod1.0.1-Mod
1.20.51.0.1-Mod1.0.1-Mod1.0.1-Mod1.0.1-Mod
1.20.41.0.1-Mod1.0.1-Mod1.0.1-Mod1.0.1-Mod
1.20.31.0.1-Mod1.0.1-Mod1.0.1-Mod1.0.1-Mod
1.20.21.0.1-Mod1.0.1-Mod1.0.1-Mod1.0.1-Mod
1.20.11.0.1-Mod1.0.1-Mod1.0.1-Mod1.0.1-Mod
1.201.0.1-Mod1.0.1-Mod1.0.1-Mod1.0.1-Mod
1.19.x5 of 5 versions with builds
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

How it compares

Full comparison

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.

ModLoadersGame versionsEnvironmentUpdated
Bossbar ExpansionFabric, Forge, NeoForge and Quilt1.19 – 1.21.8Server required, client optional2025-07-21
Warden BossbarFabric, Forge, NeoForge and Quilt1.20.3 – 1.20.6Server required, client optional2024-12-25
Upgraded MobsFabric, Forge, NeoForge and Quilt1.17 – 1.21.11Server required, client optional2026-03-18

Questions

Does Bossbar Expansion need to be installed on the client?

No. Only the server has to run the mod; a player's client may leave it out, since the server alone is enough for the bars to work.

Can Bossbar Expansion be used without a mod loader?

Yes. It is also available as a data pack, which servers can load without installing the mod on a 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.

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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.
01st, on the Modrinth page

Official listing

Owner
01st
Published
2025-01-14
Updated on Modrinth
2025-07-21
Facts verified
2026-10-15

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