The Planes of Existence

Incredibly vast is the cosmos which teems with a multitude of worlds as well as myriad alternate dimensions of reality, called the planes of existence. It encompasses every world where adventures take place, most within the relatively mundane realm of the Material Plane. Beyond that plane are domains of raw elemental matter and energy, realms of pure thought and ethos, the homes of demons and angels, and the dominions of the gods.

Many spells and magic items can draw energy from these planes, summon the creatures that dwell there, communicate with their denizens, and allow adventurers to travel there. As you achieve greater power and glory, you might undertake a quest to rescue a friend from the horrific depths of the Abyss, or find yourself hoisting a tankard with the friendly giants of Ysgard. You might walk on streets made of solid fire or test your mettle on a battlefield where the fallen are resurrected with each dawn.