Ultimate Bosses
Bosses to make sure you have more to do after you slay the Ender Dragon
Screenshots
About this Mod
Welcome to Ultimate Bosses, a datapack that aims to add more high-quality bosses to make sure that you have more to do after you slay the ender dragon.
Bosses:
- The Lost Angel
- The Eye
- The Storm
- Sorcerer
- And more coming soon!
Mini Bosses:
- Zombie Horseman
- Flying Witch
- Blue Shulker
- Big Phantom
- Stacked Blaze
- Death Tip
- Firework Pillager
- Evoker King
- Enderman King
- Poseidon
Lecense:
- You may not redistribute this project
- You may use in YouTube videos as long as you leave some form of credit
- You may not use in public servers, unless I gave you permission
- You may not copy or steal code from this project
- If you have any questions about license, please ask
Boss Trailers
Available Versions
How to Install Ultimate Bosses on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set datapack Loader
In the panel under "Egg", select the datapack loader and matching Minecraft version (1.20.4).
Install Mod
Open the mod browser in the dashboard and search for "Ultimate Bosses". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.20.4, 1.20.3, 1.20.2 (+1 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Ultimate Bosses server crashes on startup – what to do?
Most common cause: wrong datapack version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.20.4). You can switch loaders with one click in the panel.
Is Ultimate Bosses compatible with datapack and fabric and forge and quilt?
Ultimate Bosses officially supports datapack, fabric, forge, quilt for Minecraft 1.20.4, 1.20.3, 1.20.2. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Ultimate Bosses – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Ultimate Bosses consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
Rent Modded Server
Install Ultimate Bosses with just one click on your server.