Death Plane
A Death Plane is an alternate plane of existence where the dead spend eternity. There are different planes for different ideals of being.
Seven Heavens
The Seven Heavens is the epitome of lawfulness and goodness. Also known as Mount Celestia.
Bytopia
Bytopia borders with the Seven Heavens and Elysium.
Elysium
Elysium holds a mixture of all that is good, both lawful and chaotic.
Beastlands
The Beastlands is somewhat more chaotic than its neighbor Elysium, however it is less so than Arborea. Many animals seem to end up here when they die.
Aborea
Aborea contains the most random of all that is good.
Ysgard
Ysgard is mostly chaos while tending towards good some. The dead here battle in eternal good-natured contests of strength and courage.
Arcadia
Arcadia, while not as purely good as the Seven Heavens, does focus on adherence to the law.
Mechanus
Mechanus is so predictable and organized that it is thought to be the most boring place imaginable.
Outlands
The Outlands is considered to be in the center of all the outer planes, a balance of all philosophies or no philosophies at all depending on your views.
Limbo
The Ever-Changing Chaos of Limbo is the complete opposite to Mechanus, nothing is planned and anything can, and does, happen.
Pandemonium
Pandemonium, as its name suggests, contians a maelstrom of noise and confusion. While it is not entirely immoral, it can be quite harsh to its visitors.
Acheron
Acheron is a great battlefield on giant cubes where mighty armies fight endlessly in formation in hopeless causes.
Baator
Baator, sometimes referred to as The Nine Hells, is a den of depraved creatures who plot tirelessly to take over whatever they desire.
Gehenna
Gehenna is a bleak existence for those who live there, there is some order to the place but not so much as Baator.
The Gray Waste of Hades
The Gray Waste of Hades(AKA The Gray Waste) is a place of apathy and hopelessness that leeches the color from all who enter and saps away a person's will until they no longer have any desire to leave.
Tarterus
Tarterus has been said to be a prison to many souls who find themselves there, where the native inhabitants torture the imprisoned. It's true name is Carceri.
Abyss
The Abyss is an infinite pit of nefarious and capricious beasts who care only for themselves.