promotional bannermobile promotional banner

Mo’Bosses

Ordinary mobs spawn as bosses with classes, abilities, minions, and loot. Every kill raises your own level, and the bosses that find you grow with it.

Mo’Bosses

🏆 Mo’Bosses turns ordinary mobs into bosses, on Paper servers and, as a Fabric or NeoForge mod, on modded servers and in singleplayer worlds. A zombie that spawns near a player may come out as a level 40 Epic boss with more health, harder hits, a glow in its class color, a health bar, and abilities like lightning, meteor showers, and minions. Every kill raises the player’s own Mo’Bosses level, and the bosses that find them grow with it.

Playing with Fabric or NeoForge? The mod has its own page: Mo’Bosses for Fabric & NeoForge.

What you get

  • 🐲 25 kinds of bosses in six classes, from Common to Mythic, from zombies and skeletons to blazes, breezes, ravagers, and guardians.
  • 📈 Levels that grow with your players. A boss takes the level of the players near it, and weak bosses count for little, so farming them levels nobody up.
  • ✨ Thirty-four abilities: sixteen shared ones, from lightning and meteor showers to a healing obelisk and doubles, eighteen that belong to particular boss types, and a second phase at half health.
  • 🎁 Loot worth the fight: over 600 entries by level and class, a private drop for each player who fought, potion rewards, and a pity count for rare items.
  • 🏆 Something to chase: achievements in a tab of their own, a bestiary, the best hunters, nights of the hunt under a full moon, and a survival bonus that brings more bosses the longer you live.
  • 🌍 Every player reads their own language, even the names over bosses’ heads: five languages bundled, picked by IP or game language.
  • 🛡️ Builds stay safe: GriefPrevention claims and WorldGuard regions keep bosses out, and CoreProtect logs whatever they break, ready to roll back.
  • 🤖 Ask Allay about the boss in front of you: with Allay, the AI helper, players learn what a boss can do, how rare its class is, and how far their next level is, from this server’s own numbers.
  • 🧱 Paper, Fabric, or NeoForge, server or singleplayer: the same bosses everywhere, and players join with a vanilla game. As a mod it brings a settings screen, boss loot in JEI, REI, and EMI, bosses from other mods’ mobs, and a trigger for your own advancements.
  • 🧩 Plays well with others: PlaceholderAPI, MiniPlaceholders, Plan, WorldAPI, Allay, and SQLite, MySQL, MariaDB, or PostgreSQL for players’ levels.

Get started

  1. Put the jar in plugins/ on Paper 26.3 or a fork of it, on Java 25, or in mods/ on Fabric (with Fabric API) or NeoForge 26.3, on a server or in your game. With itzg/minecraft-server, add mobosses to MODRINTH_PROJECTS instead.
  2. Restart the server, then meet a boss right away: /mobosses spawn zombie 30 epic.
  3. Read First steps to tune how often bosses come.

Configs and databases from 1.x load as they are.

Documentation

The wiki explains everything else: Fabric and NeoForge, bosses and classes, abilities, loot and rewards, player levels, claims and protection, commands and permissions, configuration, languages, and integrations. Source code and issues live on GitHub.

Related projects

  • Moonlands – the hard-survival server where all of these run.
  • WorldAPI – REST and WebSocket API to the world, players, and stats of a Paper, Fabric, or NeoForge server.
  • Minecraft MCP – lets an AI client read and run a server through WorldAPI.
  • Allay – an AI helper in the game: ask with /ask, right in the chat.
  • Allay Server – the backend behind Allay.
  • Mo’Joins – join and quit messages in each player's language.
  • Mo’Afks – a safe AFK mode that doesn't block the night.
  • minecraft-exporter – Prometheus metrics from WorldAPI.
  • minecraft-grafana – the Grafana dashboard for WorldAPI.

IP Geolocation by DB-IP, licensed under CC BY 4.0.

Mo’Bosses Team

profile avatar
  • 7
    Followers
  • 21
    Projects
  • 48.9K
    Downloads

Software Engineer & Architect, specializing in JVM, .NET, TS, Android, and Go. I dabble in a bit of everything ☕️

Donate

More from MairwunNxView all

  • Red Bull for Fabric & NeoForge project image

    Red Bull for Fabric & NeoForge

    26 cans brewed from bull bile and taurine or found in chests by biome: wings that let you glide, and caffeine that stops your heart above 100.

    • 144
    • November 2, 2026
  • Mo’Joins project image

    Mo’Joins

    Join and quit messages in each player’s language, picked by their IP: a welcome for newcomers, sounds, particles, and an optional firework.

    • 3
    • October 28, 2026
  • Allay AI for Fabric & NeoForge project image

    Allay AI for Fabric & NeoForge

    An AI helper in chat, on your server or in singleplayer: ask with /ask and get answers grounded in your real game, from your inventory and chests to recipes and rules.

    • 38
    • October 26, 2026
  • Mo’Bosses for Fabric & NeoForge project image

    Mo’Bosses for Fabric & NeoForge

    Ordinary mobs spawn as bosses with classes, abilities, minions, and loot. Every kill raises your own level, and the bosses that find you grow with it.

    • 39
    • October 26, 2026
  • Red Bull for Fabric & NeoForge project image

    Red Bull for Fabric & NeoForge

    26 cans brewed from bull bile and taurine or found in chests by biome: wings that let you glide, and caffeine that stops your heart above 100.

    • 144
    • November 2, 2026
  • Mo’Joins project image

    Mo’Joins

    Join and quit messages in each player’s language, picked by their IP: a welcome for newcomers, sounds, particles, and an optional firework.

    • 3
    • October 28, 2026
  • Allay AI for Fabric & NeoForge project image

    Allay AI for Fabric & NeoForge

    An AI helper in chat, on your server or in singleplayer: ask with /ask and get answers grounded in your real game, from your inventory and chests to recipes and rules.

    • 38
    • October 26, 2026
  • Mo’Bosses for Fabric & NeoForge project image

    Mo’Bosses for Fabric & NeoForge

    Ordinary mobs spawn as bosses with classes, abilities, minions, and loot. Every kill raises your own level, and the bosses that find you grow with it.

    • 39
    • October 26, 2026