All versions of 8 Planets

1.4 - Free 1.3.2 - Maintenance 1.3 - Planet data - Immersive view - Improved movement 1.2.2 - Minor update 1.2.1 - Volume control 1.2 - New planet textures - Improved text, graphics&sound - Improved planet selection 1.1.3 - Changed text and images 1.1.2 - Planets selected from within animation 1.1.1 - Quiz difficulty levels - Planets selected from "fact-info" - Sound and animation improvements 1.1.0 - Facts panel displays the planets and definitions of planetary properties. - Layout improved