Knoxcordium (by ProtoAno)

Knoxcraft is a modpack bringing lots of biodiversity and magic to your world with mods such as Alex’s Mobs, Ars Nouveau, and Biomes ‘o’ Plenty.

While the environment of the Overworld might be covered head to toe in new life, that doesn’t stop the Nether and The End from also receiving their fair share of features, such as improvements in the hellscape of Incendium and the mystery of Unusual End… all the while bringing new dimensions to explore.

Warning! You may have to reload the world more than once to render entities as a result of certain mods.

I also recommend at least 11 GB be allocated to Minecraft.