I think Apple Arcade and similar are already doing this. Games on there are free from microtransactions/ads.

...besides the recurring nominal fee that you have to pay to retain "ownership" of a title? I think you misunderstand what "free from microtransactions" means.

I think "The Search for Planet X" might meet (or come close to) your criteria.

https://boardgamegeek.com/boardgame/279537/search-planet-x

Players make guesses on their phone and only they know the result