On the topic of DnD (and also Civ4), I learned quite a bit about philosophy from Planescape: Torment (and some from Torment: Ages of Numenera much later as an adult), and about philosophy and tech and futurism from Sid Meier’s Alpha Centauri.
Edit to add: I realized I phrased my reply in terms of what the games taught, rather than what they changed my mind about. Partly that’s because I encountered them early, but I still think they should count and did change my preteen mind about many things.
On the topic of DnD (and also Civ4), I learned quite a bit about philosophy from Planescape: Torment (and some from Torment: Ages of Numenera much later as an adult), and about philosophy and tech and futurism from Sid Meier’s Alpha Centauri.
Edit to add: I realized I phrased my reply in terms of what the games taught, rather than what they changed my mind about. Partly that’s because I encountered them early, but I still think they should count and did change my preteen mind about many things.