Apocalypse

I have an idea for a dimension called the apocalypse. It can be unlocked if you go to sleep with a lit tnt. The apocalypse is only the mesa biome and the desert biome. There are fungal blocks everywhere, and the main mobs are spiders, zombies, husks, pillagers, rabbits, and wardens. Like the nether, there are mushrooms almost everywhere, and there are structures that sort of resemble the bastion remnant.