ModsFinder

Bosses' addition

by Emerald Studios

Bosses' addition is a datapack that adds three escalating boss fights and a final boss to a world, started by trigger commands.

FabricForgeNeoForgeQuiltServer required, client optionalCustom license1.21 – 1.21.6

What it does

Vanilla bosses can feel too mild for some players, and this datapack adds a set of encounters with rising difficulty. The first boss is matched to players with iron-tier gear, and later triggers bring in medium, hard and extreme bosses before the final encounter. Each boss spawns with its own gear, weapons and buffs, so every fight asks for a different approach.

The final boss is a large, heavily armored undead that carries a Soul Reaper weapon and has 500 HP. The datapack is installed by placing its .zip file in the datapacks folder of a world, then running a reload in game. Fights start with the matching trigger command, such as the one for the first boss, so players can choose when to begin.

The mod runs on the server, and clients need nothing extra. Files are published for Fabric, Forge, NeoForge and Quilt, and as a data pack, across 7 release versions, 1.21 – 1.21.6. It is released under a custom license and is not open source.

Key features

  1. Escalating boss fights

    Four bosses step up in difficulty, from a first encounter to an extreme one, before the final boss.

  2. Trigger-based start

    Each fight begins with a trigger command, so the encounter starts only when a player runs it.

  3. Armored final boss

    The final boss is a large undead with heavy armor, a Soul Reaper weapon and 500 HP.

  4. Equipped bosses

    Every boss spawns with gear, weapons and buffs matched to its difficulty level.

Compatibility

Latest build for each game version and loader.

1.21.61.3.6+mod1.3.6+mod1.3.6+mod1.3.6+mod
1.21.51.3.6+mod1.3.6+mod1.3.6+mod1.3.6+mod
1.21.41.3.6+mod1.3.6+mod1.3.6+mod1.3.6+mod
1.21.31.3.6+mod1.3.6+mod1.3.6+mod1.3.6+mod
1.21.21.3.6+mod1.3.6+mod1.3.6+mod1.3.6+mod
1.21.11.3.6+mod1.3.6+mod1.3.6+mod1.3.6+mod
1.211.3.6+mod1.3.6+mod1.3.6+mod1.3.6+mod
ReleaseBetaAlphaNot available

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

Use cases

Challenge after vanilla

Players who have finished the vanilla bosses can use the datapack to add tougher fights to a survival world.

Server events

Server owners can run the trigger commands for a shared progression of boss fights on a multiplayer server.

Who it’s for: The datapack suits players who want harder, staged boss fights in a single-player world or on a server, without installing any client-side mod.

How it compares

Full comparison

Cyberforged is a Fabric-only mod for 1.21 that needs both client and server, and it is released under All rights reserved. AI Bosses covers Forge and NeoForge for 1.20.1 – 1.21.1, also on both sides, under All rights reserved. Formidulus is a Fabric mod for 1.21.1 that runs on both sides and is open source under the MIT License, while this datapack is not open source.

ModLoadersGame versionsEnvironmentUpdated
Bosses' additionFabric, Forge, NeoForge and Quilt1.21 – 1.21.6Server required, client optional2025-10-25
CyberforgedFabric1.21Client and server2024-07-19
AI BossesForge and NeoForge1.20.1 – 1.21.1Client and server2026-07-04
FormidulusFabric1.21.1Client and server2025-01-13

Questions

Does the server need the datapack installed?

Yes. It is required on the server and optional for players.

How are the boss fights started?

Each fight begins with its trigger command, such as trigger firstboss for the first boss, after the datapack is loaded with a reload.

Which game versions does the datapack support?

Files cover 7 release versions, 1.21 – 1.21.6, with 1.3.6 for 1.21.6 as the latest file.

In the catalog

Bosses' addition is one of 11,058 Mobs mods on ModsFinder, and one of 5,189 Mobs mods for Fabric. 13,625 mods support Minecraft 1.21.6.

Mobs mods11,058Fabric modsMods for 1.21.613,625

More from Emerald Studios

All projects
Just Enough Armour (Reforged)1.20.1Playtime Rewards1.21 – 1.21.5

Similar mods

[EMF] Entity Model Features1.18.2 – 26.3L_Ender's Cataclysm1.19.2 – 1.21.5Guard Villagers1.16.5 – 26.3Touhou Little Maid1.16.5 – 1.21.1Creeper Overhaul1.18.2 – 1.21.1Zombie Awareness1.12.1 – 1.21.1

Official listing

Owner
Emerald Studios
Published
2025-02-19
Updated on Modrinth
2025-10-25
Facts verified
2026-10-15

Tags

AdventureEquipmentMobsMinigame
Open on ModrinthCompare