#9
Geography is one of the hardest subjects to make stick through a game, because most attempts are just quizzes with a skin on top. Carmen Sandiego sidesteps that by wrapping the world knowledge inside detective work. You follow clues, eliminate locations, and narrow down where the villain has gone, which means the geography is never static facts to memorise but live information you are actively using. I think parents will recognise this one instantly, and that brand familiarity is genuinely useful when choosing a gift. The reading load is moderate, so it works best from around age eight, and a child who likes mystery or detective framing will get considerably more out of it than one who does not.