There seems to be an issue with mob spawning. I've tried messing with it and nothing makes it work, but before I switched to Custom NPC Plus I had several mobs that would spawn in various biomes, and ...
Originally, I intended to create a fork that removes the useless/broken Minecraft Realms and Mod Options... buttons to save GUI space and improve the user experience, especially for new players.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback