Having more options of things to throw at your players is always good. And when they've left the mortal plane, there's lots of different creatures and beings out there they could interact with. That's where Beings from Beyond comes in. It's a new supplement with rules for Demons, Devils, and Angels for your games of 5th Edition. The book is up on Kickstarter now.
From the campaign:
Beyond the veil that lies between worlds, are beings of unimaginable power. Some are creatures of blazing beauty and transcendent revelation. Others are stains upon the fabric of reality itself, unspeakable entities before whom eons are instants, and whose dark designs span the universe.
BEINGS from BEYOND is your guide to these entities, known to mortals as Angels, Demons and Devils. Part bestiary, part setting guide and part adventure generator; the full book will be at least 120 pages long, in a starkly beautiful black-and-white style. Within its pages are scores of random tables for generating everything from Demonic cults to extra-dimensional paradises, reimagined mechanics ranging from summoning to madness, and plenty of evocative lore to help you involve these awe-inspiring creatures in your tabletop role-playing adventures. Statistics are included for 5th edition, but the book is compatible with any fantasy role-playing system.
The campaign is already over its funding goal with 24 days left to go.