Educational technologists often aspire to make games which are so fun that people will play them despite their educational content, or maybe even without awareness of their educational content. But if you remove coercion from the picture, and we’re imagining that people will choose to play whatever they find most fun, that means you’re in competition to out-fun Fortnite, or League of Legends, or Stardew Valley, or whatever—games exquisitely optimized to be as viscerally enjoyable as possible.