The Divine Sphere

The Divine Sphere is where the gods preside in their thrones overseeing their domains, and their divine worlds constructed to the precise will as they wish it and any number of subdivisions built off of it that they set apart as Afterlives for souls that they had claimed in life or from Limbo, which itself is another divine domain by a god of death who claims all the unclaimed souls with open doors to ensure as few souls as possible get lost, who's Reapers actively seek out the dead to safely guide their souls to their home in the heavens- or hells, and everywhere in between. Though similar beings acting as agents of other divines can fill the same role to directly claim souls of their deity.

Necromancy touched on the importance of this, but it is worth reiterating: Souls, Spirits, are unstable by nature and require a stable afterlife or they devolve over time until they disperse into raw spiritmatter similar to a corpse decaying and becoming one with nature, a form of oblivion, or a potentially worse fate: evolving into a Spiritbeast, spirit world monsters that cannibalize lost spirits and spirit matter too sustain themselves with their minds diluting into husks or overcrowded amalgams of all they've consumed. Reapers will actively cull these predators as they find them. They tend to be rarer the more civilized or populated a region is, which feature higher Reaper activity

It's rare but possible for spirits to be missed, usually as a result of an unnatural death born of malice rather than accident or natural causes. This can be made deliberate as certain monsters may actively skew the detection of a death, or employ offensive measures or spells that capture or destroy the soul. Other times, certain magics might shroud areas in nondetection to create blindspots in Death's surveilance.

Back to the divines, the gods and goddesses, there is a deity for every "Domain" - a sphere of influence over which that divine represents. If you aren't familiar with the concept, it's aspects such as Oceans, Storms, Earth, Sky, or things such as Hearth, Fertility, Marriage, Childhood, Trade, Magic, or groups such as Thieves, Warriors, Archers, Merchants, as well as attributes such as skin color or location; Continents, Nations, Cities, Towns, or even Streets. As you might imagine, not all Domains are equivalent. There are Grand, Major, Great, Minor, Lesser, and Folk gods and goddesses. Folk gods are essentially equivalent to local spirits and have the least encompassing or effective domains, while Grand gods have the domains with the widest reach and effectiveness and have global influence. Even a folk god can have their own divine world of their design, but they tend to be small- like a singular room, with physics less divergent from the material world, whereas a Grand divine can have completely alien worlds where nothing resembles the material world. The claim of a higher deity overrules the claim of a lower deity, so folk gods rarely have any souls over them. Powerful necromancers are able to take souls into their own pocketspaces in a similar manner to a divine's claim, but the claim of that god is still in effect and you may have to fight agents of that god that come to retrieve a valued soul, up to and including direct divine intervention if it's particularly valuable to that god.

Gods possess raw generalized magic with control over their divine domains that is equivalent in scope to a witch's magic ranks, at a rank of 5 for Folk gods, +1 per divine rank higher, up to Grand gods possessing effectively Rank 11 magic. For quick reference, ranks are roughly 2 - 4x the power of the previous rank, varies in scope and applications, but Rank 5 magic is generally considered "City Scale". However, the rank doesn't mean a huge amount when the domain itself has limited applications.

Gods used to be far more involved with the affairs on earth, even dwelling in the flesh and ruling like sorcerer-kings and queens in ancient past, pulling back only slowly, but still an active presence: until the Masquerade was established in agreement between the majority of the divines as well as powerful figures in the magical world at the time including witches and legendary mythical creatures, and mediated by powerful Archangels, Celestials and Demons being separate entities from the divines, though often in collaboration and can claim souls themselves.

In this agreement they created the Veil that separates the supernatural from the mundane, with the purpose of protecting the mundane experience to keep it neutral and operating on their own will, to protect the unmolested collective conscience of humanity, which is the engine that keeps the gears of reality in motion and shapes the nature of all things; No more would gods fight over control of this resource in order to bend existence to empower one at the expense of another. Many gods are starting to question this agreement since the modern advent of social media and the ability to skew the perceptions of incredible numbers of souls all at once, rivaling or exceeding religion, and all with a degree of subtlty.

When the Masquerade is violated, it gives license for gods to act with proportional response based on the divine domains that the action fell under or where it took place.

Usually this means a warning and undoing the fallout that the violation caused Sometimes, this can mean severe divine punishment.

Unfortunately, at this time it is beyond the scope of this cyoa to go through and create individual gods and their domains, afterlives, and divine boons they could provide, and their personality and level of involvement in the lives of their adherents.

Feel free to use any fictional deity, translated to appropriately integrate with what has been said here, and providing no actual mechanical benefit (at least outside of their afterlife, should you end up there, which can be temporary during any period where your body is dead in between resurrection methods, or permanently if you experience a true death). If you are a Warlock, this can be your Patron that unlocks your magic, and you might flavor the nature of your magic to thematically tie in with this deity. A dead witch without the means of return can earn the right to be reincarnated without memory while in life, or as a Familiar spirit. Memories return next time they die.