

Ultris: Boss Expansion
Note: this is an older project that is currently unmaintained!
Ultris is a Minecraft data pack expansion that adds 8 completely new bosses to the game. Each of them features unique combat mechanics, special quests, and valuable rewards. You'll be able to explore various structures created specifically for boss battles, as well as gain access to exclusive items and encounter new enemies.
Every boss is distinguished by original attack patterns, background music, multiple combat phases, sound effects, and visual elements. This creates a unique atmosphere for each battle. Among the added opponents, there are those that can be summoned in the early stages of the game, as well as powerful creatures for experienced players who have completed the main storyline.
To summon bosses in creative mode, use the command: /function 1_splatus:ultris/admin_menu
and select the "Summon Bosses" option.
Knowledge Base
For detailed information about the bosses, you can refer to the Ultris wiki page. Although the knowledge base is still being filled, you can accelerate this process by joining the developer community.
Main Commands
/function 1_splatus:ultris/admin_menu
Terms of Use
The project is distributed with certain restrictions. Republishing content or distributing modified versions to other users is prohibited. Modification for personal use in single-player games or on your own server is permitted. Inclusion in modpacks is also allowed.
For modpack creators, editing only one file is permitted - the default settings file, which allows disabling certain mod features when necessary.
Project Authors
- Creator and programmer: • LimeSplatus#4730
- Music for Blaze King and unused Shulker Stone music: • humanoid#9099
- Optimization assistance: • Holmes (iRedSC)#0281
- Blaze King tower room creation: • the game master#0666, • Just Fan Account#2495, • Frektip#4587, • Churner#6711