Rigid body

Is there a way to get a rigid body simulation (with force fields) without involving soft bodies?
Thanks

im also looking for an answer on this topic.. to my knowledge we have soft body dynamics.. not rigid body.

XSI 3.5 does not have rigidbodies without using softbodies. However, it has been hinted at on many forums and users groups that XSI 4.0 has rigid bodies built in.