The verdict first: only one of these five underworlds is primarily a place of judgement, and it is not the one most readers expect. Egypt runs a courtroom. Greece runs a warehouse with a small penal wing. Mesopotamia runs a house of dust in which good conduct buys you nothing. Norse Hel is a cold destination with no moral criterion attached, and Japanese Yomi is not about morality at all but about pollution. If you arrive expecting heaven-and-hell and find it, you have probably imported it.
The single axis that sorts them
Ask one question of each: does what you did in life determine where you go?
- Duat — yes, explicitly, with a procedure. The heart is weighed against a feather; there is a declaration to make and a list of gods to name; failure has a defined penalty. See the Duat and Maat.
- Hades — mostly no. The overwhelming majority of Greek dead go to the same grey place regardless of merit. Punishment in Tartarus is reserved for a handful of named individuals who offended the gods personally, and the blessed fields are for a handful more. Only later, with mystery-cult and philosophical material, does a general moral sorting appear.
- Kur / Irkalla — no, and emphatically not. The Mesopotamian dead all go down, all eat dust and clay, and rank there depends on what the living do for you: burial, offerings, having descendants to pour water. See Kur.
- Helheim — no. The Norse criterion is the manner of death, not its virtue: those who die in battle may be chosen elsewhere, and everyone else goes to Hel. Straw death is not a sin.
- Yomi — the question does not apply. Yomi is defiling rather than punishing. What matters is contamination and the ritual washing required afterwards, which is why the story of a visit there ends with a bath rather than with a verdict.
That single axis explains more about these five systems than any amount of comparing rivers, gates and dogs.
Egypt and Mesopotamia are the real contrast
Two neighbouring literate civilisations, trading and corresponding with each other for millennia, arrived at opposite conclusions about death — which is by itself excellent evidence against any theory that afterlife beliefs arise from a universal human intuition.
Egypt invested enormously: tomb architecture, mummification, funerary literature written to be read by the deceased, food offerings, model servants, and a destination — the Field of Reeds — that is recognisably a better version of the Nile valley, with farming in it. The system assumes continuity. You will need your body, your name, your possessions and your correct answers.
Mesopotamia assumed the opposite and said so bluntly. Its most famous poem is about a king who cannot accept death and is told, at length and by several people, that he will not escape it. The netherworld in the Descent texts has seven gates at which the traveller is stripped of one item at each, arriving with nothing — a fairly exact image of what the culture thought death removed. That contrast is developed on its own page: Egypt and Mesopotamia on death.
What Greek material actually says, before Plato gets to it
The oldest surviving Greek picture is not moral. The dead are witless shades who must drink blood to speak; the greatest of warriors says he would rather be a hired labourer among the living than king over all the dead. That is a statement about the worthlessness of the afterlife, not about its dangers.
Three later developments produce the familiar version. Mystery cults offered initiates a better outcome, which is a criterion — but an initiatory one, not an ethical one. Philosophical writing added judgement scenes and moral topography, most influentially the closing myths of certain Platonic dialogues. And Roman epic consolidated the whole thing into an organised underworld with distinct districts, which is the version Dante inherits and therefore the version most Western readers actually carry in their heads. Attributing that architecture to archaic Greece is a chronological error of roughly a thousand years.
The three features people wrongly assume are universal
A river. Greek has several, and Mesopotamian texts have a river with a ferryman; Egyptian geography is aquatic throughout. But Norse Hel is reached by a road, over a bridge, going down and north. Yomi is reached through a cave and blocked with a boulder. The river is a Mediterranean and Near Eastern habit, not a human constant.
A payment. The coin-for-the-ferryman idea is real but far narrower than its reputation: burials with coins in or near the mouth are a minority practice, concentrated in particular periods and regions, and the literary references are mostly comic. Treating it as standard Greek funerary practice overstates a patchy archaeological record.
A devil. None of these five underworlds has one. Their rulers are administrators — see Hades and Hel for the two most persistently misread. The adversary who tempts you into damnation is a later theological development that has been retro-fitted onto every ancient underworld by popular art.
Where the traditions do converge, and why that is unremarkable
Three genuine commonalities: the dead are below, the boundary is one-way, and exceptions require negotiation rather than force. These are not deep revelations. Burial puts bodies down; a belief system that let the dead wander back freely would not be usable; and every narrative tradition needs the rule broken occasionally to generate a plot, which is what produces the descent stories gathered on the katabasis roundup. Convergence at this level of abstraction is what you would expect from unrelated cultures solving the same practical problem, and it is not evidence of contact or common origin.
The Indian material is the sharpest reminder that even the "down and one-way" pattern is not universal. Once rebirth becomes the framework, Yama's realm is a stage in a process rather than a terminus, and the various hells are corrective and time-limited. A system built around exit is a different kind of object altogether, and slotting it into a list of underworlds is already a distortion.
Questions readers bring to this comparison
Which of these is closest to Christian hell? None is close, but the nearest structural relatives are the Greek philosophical and Roman literary underworlds, which supply the geography, and Egyptian judgement, which supplies the audit. The specifically Christian combination — universal moral judgement plus eternal conscious punishment plus a personal adversary — is not attested as a package in any of the five.
Did ordinary people actually believe these descriptions? Grave goods suggest that practice and poetry did not always agree. Greek burials contain provisions and objects that the literary "witless shades" would have no use for, and Mesopotamian family cults maintained offerings for generations on the assumption the dead could be affected by them. Ritual behaviour is usually a better guide to belief than epic is.
Why is Yomi so different from the others? Because the framework is purity rather than reward. The category that organises early Japanese religious thought here is kegare, defilement, which is contracted like a stain and removed by washing. Death defiles the living; the dead themselves are not being processed. Later Japanese hells with judges and tortures arrive with Buddhism and belong to a different layer entirely.
Is Tartarus the Greek hell? It is a prison, and originally a prison for gods — the defeated elder generation is confined there long before any human is. The named human occupants are punished for specific outrages against the gods, not for ordinary wickedness. A place with a population you can count on your fingers is not a hell.