14.10.2023
Some of them are just modified standard types, so don't be surprised if you see evil endermen with high health parameters and slightly modified effects. Some of them even have their own music, so we can say that the developers did their best and made a cool mod.
How to install the modification:
First step: download and install Fabric and Fabric API.
Second step: download the mod file.
Third step: copy the Ultris: Boss Expansion mod package to the .minecraft/mods folder (if it does not exist, install Forge again or create it yourself).
Download Links
The version has been released!
Download (Windows)
Download (Linux/MacOS)
Download the official server