Downloadable application development software; downloadable computer software, namely, providing a library of virtual objects for use in developing other software applications; downloadable computer software used in producing animation and three-dimensional scenes for use in other software applications; downloadable virtual reality software; downloadable augmented reality software; downloadable software for navigating virtual reality and augmented reality environments; downloadable computer software for use in enabling computers and mobile devices to provide virtual reality and augmented reality experiences; instruction manuals provided herewith