CurseForge · Minecraft mod
Boss Tweaks
Fully heal Bosses when all nearby players are defeated... And more!
Quick answer
Which Boss Tweaks release should I use?
Boss Tweaks boss_regen-2.0.1.jar targets 1.21.1 with Fabric. The project page does not say whether this file belongs on the client, dedicated server, or both. All 1 required mods have matching files.
Where it goes
Is Boss Tweaks required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does Boss Tweaks boss_regen-2.0.1.jar need?
boss_regen-2.0.1.jar. Change the file and its required mods may change too.
Install Fabric API first. We found matching files for this game-version and loader setup.
We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add Boss Tweaks without breaking your instance.
Built for Boss Tweaks boss_regen-2.0.1.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use boss_regen-2.0.1.jar. It targets 1.21.1 with Fabric; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install Fabric API first. We found matching files for this game-version and loader setup.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside boss_regen-2.0.1.jar. It opens that exact file at the source.
About this project
What does Boss Tweaks add?
A mod that heals Bosses when players are defeated and adds some balancing changes for multiplayer servers.
Healing
When a boss has no nearby alive players in a configurable radius, it recovers all of it's health. Long gone are the days of bed respawn or similar exploits.
Armor Scaling
All bosses have configurable amounts of armor and armor toughness increased for each connected player in the server. Now players are encouraged to cooperate to defeat them.
Persistence
Bosses won't naturally despawn. You can retry those battles as many times you want if you respawn far from them.
Chest Loot Drops
Defeated bosses will have a chest with it's loot table waiting to be generated instead of dropping items to the floor. Perfect for usage with Lootr or similar in Multiplayer. (Disabled by default since the Wither and Ender Dragon have empty loot tables in vanilla)
Compatibility
Hardcore Revival: Knocked out players won't prevent bosses from healing.
Lootr: Boss Loot Chest is compatible with lootr.
Configuration
There's a config file located in /config/boss_regen_server.json:
- "detectionRadius": The radius in blocks from the boss to search for alive players (Used for healing).
- "armorBonusPerExtraPlayer": Pretty self explanatory.
- "toughnessBonusPerExtraPlayer": Pretty self explanatory.
To apply each tweak to an entity there's 4 dedicated tags, located in "data/boss_regen/tags/entity_type":
- has_armor_scaling: Defaults to #c:bosses.
- has_loot_chest: Is empty by default.
- has_persistence: Defaults to #c:bosses.
- has_regen: Defaults to #c:bosses.
You can configure it with a datapack and enable it by default in all worlds with:
Project description from CurseForge.
Pick your setup
Boss Tweaks by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.1
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Boss Tweaks versions and loaders
boss_regen-2.0.1.jar
15 Sept 2026
boss_regen-2.0.0.jar
23 Aug 2026
boss_regen-1.2.0.jar
31 Jul 2026
boss_regen-1.1.0.jar
13 Jul 2026
boss_regen-1.0.0.jar
18 Jun 2026
Looking for an older file? The official CurseForge project page is in Resources.