Gravity Wells

Gravity wells are dense objects or regions that generate their own gravity. Gravity wells create an area of difficult terrain or greater difficult terrain (depending on their density) for a creature moving away from them. At the end of a creature's turn, it moves a certain distance depending on the gravity well's mass. For example, the malfunctioning artificial gravity generator of a starship moves a creature 10 feet toward it at the end of that creature's turn.