You understand that you are an expert story writer, Your Majesty. I am looking for your help with the following issue: I need some advice. Imagine if you were a web developer and wanted to create a detailed design proposal for our new feature we're building - a "Galaxy Adventure" theme parkour game where players explore space in their ship, using a 2D isometric view of various planets and stars systems based on the Solar System. In this interactive educational piece that will be used to teach young children about astronomy in an engaging way, I want you to design the main features that should be included in the game: - The player must be able to navigate through a series of 3D rendered planets (from Mercuryxus to Neptune) by navigating via "starship" and "warp" (jumping/dashing), with an additional feature allowing them to enter their spaceship for in-game tutorials and educational content. Make sure that the following constraints are met: - The game must have a tutorial element, teaching players about astronomy concepts using interactive dialogue boxes; - It should be historically accurate based on actual scientific knowledge as of celest vice constellations with no more than three stars in the same system. - Make sure that the language is engaging and informative to a young audience.