This mod adds in more biomes called "regions". The reason for this is the portals are a way to get to separate regions. I don't know if that would make sense so I'll explain it again but simpler. as of right now there are three regions. Human, Gemthrite, and Mage. The only known way to travel to the different regions is using portals. there are leakages from the other two regions that have seeped into the human region. I plan to add more regions and add more to the regions. One update that I'm working on is putting more into the Gemthrite region, like more biomes representing more gems, updating textures (especially the male amethyst Gemthrite), more crafting recipes, more mobs (both passive and aggressive), and finally more creatures to tame. the mage region is definitely getting an update because it only has one biome, a giant spruce forest, two mobs, and one magic type with one wand.