Universe Explorer is an educational PC CD-ROM game that offers a complete guide to our universe. It includes interactive features such as piloting your own rover on Mars' surface and navigating through space. The game contains over 16 million stars and 2000 space objects, with more than 500 photos and video clips. It also offers 3D renderings of planets and virtual reality flights on Mars. The package includes 2 CDs and the original box with manual. The item is in very good condition with some minor wear on the box but discs are brand new sealed.