Two of my favorites: 1. Monopoly, with no "house rules" - play it exactly as written in the game manual. Monopoly was created as a teaching tool about the outc

Two of my favorites: 1. Monopoly, with no "house rules" - play it exactly as written in the game manual. Monopoly was created as a teaching tool about the outcomes of unregulated capitalism, and it is a very, very good teacher. At some point, one or two players will accrue enough wealth to become the clear winners, and all the other players will start a slow spiral into poverty. Over the years people have added "house rules" in an attempt to make the game more friendly and fun, which is completely missing the point. It's not intended to be friendly or fun, it's intended to educate! 2. The Parable of the Polygons: https://ncase.me/polygons/ https://ncase.me/polygons/. Arguably not much of a game or a puzzle, but its use of interactive game-ish mechanics makes the story much more impactful.