Wildspace

Every world of the Material Plane is situated in Wildspace, or more precisely, in its own Wildspace system. Wildspace systems are airless oceans teeming with space-dwelling life forms, including spores, space plankton, and larger creatures that resemble fish and aquatic mammals. The ones that need air to survive either generate their own air envelopes or live in the air envelopes of other creatures.

Wildspace is where the Astral Plane overlaps with the Material Plane. Creatures and objects in Wildspace age normally and exist on both planes simultaneously. This overlap enables creatures to use spells such as teleport and teleportation circle to travel from Wildspace to a nearby world, or vice versa.

Many Wildspace systems have names; for example, Realmspace is a Wildspace system that contains, among other things, the planet Kal Athrys.

World-to-world travel requires a spelljamming ship, a teleport spell, or some other kind of magic.

Travel between Systems

A creature or ship that wants to travel from one Wildspace system to another must cross the Astral Sea unless it has some other magical means of traveling from one world in the multiverse to another.

Wildspace systems aren’t fixed in certain locations in the multiverse. Because they’re constantly in motion, like corks bobbing in water, no reliable devices exist to help plot a course from one Wildspace system to another. Fortunately for travelers, the nature of the Astral Sea makes such journeys relatively easy.