About the Heavens
As its name suggests, Heaven is the realm where the gods reside, and the destination for the souls of those who have died as morally righteous beings. Nothing is known about this mysterious realm, except that it is one of the two realms that is infinite in space, the other one being its polar opposite, the Netherrealm. It is an amalgamation of the East Asian and Christian concepts of Heaven. The realm can be accessed via soulnado. Scorpion's Mortal Kombat: Deadly Alliance ending says he was ripped apart by the purity of that realm, indicating that impure beings may be obliterated upon entering.
- Raiden: God of Thunder, and a former Elder God.
- Fujin: God of Wind.
- Earth God: Elemental God of Earth.
- Water God: Elemental God of Water.
- Fire God: Elemental God of Fire.
- Shinnok: A fallen Elder God (former).
In the Mortal Kombat: Conquest TV series, Shao Kahn fooled a large group of people called the Shaakans into believing that he is their god - every aspect of their culture reflects this foolish worship of the Emperor.
Relationships with other realms
Obviously, the Heaven's biggest threat comes from the Netherrealm, its polar opposite. While it doesn't get mentioned much in the games, there are hints that it seems to be in neutral relationship with other Realms. As it is considered paradise by the denizens of Earthrealm, its citizens look upon it with favor.