Eschewing fancy animation and videotaped talking heads, Louis Cat Orze uses filigreed illustrations, real historical figures, and the customs of 17th-century France to enliven its plot-driven game. The title’s namesake, Louis XIV’s cat (get it?), guides you through the intrigues at Versailles as you try to solve the mystery of the queen’s missing necklace using factoids about the duchess of Savoy’s affairs, ”succession powder” (arsenic), and the types of torture employed in the prerevolutionary Bastille. The regal tone might entice preteen girls and curious adults, but gun-crazed boys will frown. B-