Omsi 2 is delivered as Steam cd key after your purchase. Omsi 2 activation and installation is done entirely on Steam. Internet connection is required. Off to the next round! Experience a new omnibus simulator with OMSI 2 and start discovering Spandau while driving the omnibus. OMSI 2 is the successor of the well-known and awarded omnibus simulator OMSI The Bus Simulator. Buy Omsi 2, start the bus simulation immediately.