The world has now settled on a few religions with whitewashed deities and spirits.
Nobody seems to worship the antiquated creators anymore. And these gods are pissed.
Several millennia ago, you couldn’t go anywhere without praising or invoking the name Amon-Ra. I mean, he was frickin’ everywhere.
These angry gods, including Ba’al and the Sun God of the Aztecs, have now cursed mankind by sending monsters from the depths of the sea, from the air, and from other dimensions.
The only things these jealous behemoths wanted were a few simple things: our undying praise and worship, and human sacrifices, every day, for eternity. Simple requests.
In hindsight, we should have given them what they wanted. Because a cursed planet filled with tremendous supernatural fire-breathing winged demons is a hell of a place to live, work, and relax.