At the edge of our solar system, a dark planet may be lurking. Inspired by real astronomical theories from 2015, The Search for Planet X turns you into a true planet hunter. Your mission? Use observations, logic, and a companion app to locate the distant Planet X. Each round, as Earth 'travels' around the sun on the board, you'll scan the sky, attend conferences, and mark your deductions on a sheet. The app randomly selects the arrangement of celestial objects and the planet's location, following predefined logic rules, ensuring each game is a fresh puzzle. As you discover the positions of asteroids, stars, and other bodies, you can publish theories to score points—but be careful: each published clue reveals valuable information to your rivals! Tension mounts as the board fills with markers and possibilities narrow. When you think you've solved the mystery, use the app for a risky search. If you correctly identify the region and neighboring objects of Planet X, you'll be the expedition's hero! With high-quality components, including organizer trays and individual screens, the game offers incredible thematic immersion. It's an experience that blends the satisfaction of a logical puzzle with the thrill of scientific competition, all in a box that's an invitation to the heavens. Perfect for game nights with friends who enjoy putting their heads to work!