self explanatory, these are the biological children of gods that inherited their divine genes; one parent can be a god or both parents can be gods. they have the same role and abilities as the dominant godly parent. they can sometimes be hybrids of a god and a mortal, forming rare demigods, who are weaker than their godly parent. children of gods are also immortal and can only be killed via god weapons, though demigods are more susceptible to regular injury. they can be unaware of their godly nature if their parent(s) abandoned them or kept it hidden.
gods are a 'species' of entities created by one of three creation deities that represent very specific roles in the known universe. they are immortal and can only be killed via special god weapons. they come in a wide range of humanoid appearances that tend to match their given role; each god is very different from one another, and each has a different set of abilities and powers. gods created by mabuka have evil roles, gods created by valoka have good roles, and gods created by ken (kelgarath) have neutral roles.
heaven is edens and jubileus' domain that exists outside of the mortal plane. heaven is home to cloudy, airy palaces that house all types of angels in varying ranks. most are benevolent and free of judgement, but angels created by the previous, now deceased god of heaven are more quick to judge, especially unrighteous demons. heaven is constantly cast in golden light, and the air feels warm and pleasant. angels that live in heaven typically serve eden or jubileus in some way, and live loyally under their rule.
the realm of demons and mephisto's domain: hell is a dark, fiery landscape filled with powerful demons and tormented souls. hell's capital city, gehenna, is made up of brimstone castles and obsidian roads. the capital is laid out by wealth and nobility, with the richest and most royal demons living the closest to mephisto's palace. the air feels like it's constantly burning, and lava falls from the walls of an endless cavern. the heat is intense, and without proper magic protection or a blessing from mephisto himself, mortals cannot traverse here safely.
putrefaction is the name given to an alternate dimension where people are kidnapped and forced to participate in a game invented by the god of sacrifice, phantasmagoria. he captures people of certain personality types to participate, in which four "survivors" must escape from a "killer", who must kill all four survivors in order to win. people are let go if they manage to escape, or if they kill all four survivors, but if they lose, they're eaten by him. those who are eaten don't really die, but are recycled back into a loop of games until they win. the dimension itself, outside the games, is an endless foggy forest where the sun never rises.