Is there a dark planet lurking on the edge of our solar system? Sharpen your skills of deduction while you try to find it! Download the free app to take on the role of astronomer attending conferences, performing scans and gaining information about the location of celestial objects. Keep track of your deductions, publish your theories to score points, and be the first to discover Planet X! For 2-4 players.
From ACD, for ages 12 yrs-adult.