Gravity stones

A gravity stone needs to be attuned to its area of influence. For a starship or space station, that would generally be the outer hull. Within the zone, gravity is typically set in one linear direction ("down") uniformly throughout. On any planet gravity would always be pulling toward a central point, but gravity stones can achieve a flat, planar field. You could, of course, attuned one to create ringworld style centrifugal gravity or natural centripetal gravity (terramancers do this using a planet as its own gravity stone). The skill and craftsmanship affect the quality of the field in ways ranging from the exact force of the gravity (usually aiming for 1 g) to direction, conformity of area of effect to the intended space, and shape of the field.

Source: J.S. Morin on Facebook