Drop Planets

Drop Planets is a stacking puzzle where two identical planets merge into a larger world when they touch. Move the drop position over a matching planet before releasing. As planets grow, they take up more room in the pile, so a useful drop needs both a match and somewhere for the larger planet to land. Keep the stack below the danger line while you work toward bigger merges. If you can’t merge the current planet, set it down where it will still be reachable on a later turn.