Abstract: A motion simulator system (20) includes a base (24) and a platform (26). A first actuator (74) couples to the platform (26) at a point (138) rotatable relative to a first axis (70) and couples to a rotation part (132) of a first motor (82) at a point (140) rotatable relative to a second axis (68). A second actuator (76) couples to the platform (26) at a point (154) rotatable relative to the second axis (68) and couples to a rotation part (148) of a second motor (84) at a point (158) rotatable relative to the first axis (70). A controller (80) in communication with the first and second actuators (74, 76) via the motors (82, 84) imparts translational movement (146, 162) to the first and second actuators (74, 76) that enables motion of the platform (26) about the first and second axes (70, 68) and in heave (66).