Methods and systems for simulating motion in a virtual reality system without external motors or similar machinery are described herein. A mechanical seat may be mounted to a base such that the seat is moveable in at least two dimensions (e.g., roll and pitch). A human occupant of the seat may use a control yoke fixed in relation to the base to cause the chair to move in a direction opposite of the force exerted on the control yoke. An extended reality (XR) motion controller may be mounted in a fixed relationship to the seat. Motion may then be simulated in an XR environment by depicting acceleration that would yield a similar experience on the user's vestibular senses as gravity exerts on the user's vestibular senses based on motion of the seat.