Cavernship

Cavernships are vessels built to navigate the vast, cavernous expanses of the Elemental Plane of Earth. Unlike Aetherships, starships and airships, cavernships are required to constantly navigate solid obstacles.

As such, early cave-navigating vehicles resembled immense arachnids or required rail systems to operate. These are still used for navigation between neighboring "planets", but are much too slow for travel between planetary systems.

Most modern cavernships rely on the Vomisa-Ca'asi drive, which warps dimensional space for both propulsion and collision-avoidance. Some more inventive ships simply utilize demiplanes to "hop" over areas of solid earth, but such ships tend to be slower and require significantly more skill to pilot.

Many cavernships use centripetal acceleration to simulate gravity while in interplanetary space.

Warp-driven cavernships have proven to be usable as Aetherships, but this is an inefficient method of travel.