> And let me also reject the implicit notion that stories are entertainment but not, academically speaking, fun.
Stories are obviously fun, otherwise no-one would read books, but a story that you interact with meaningfully, that you can change significantly, really hard to do well.
Like every game where you can do good thing or bad thing, and the game punishes you for doing bad thing. It's really hard to write a compelling story where a nasty piece of shit still somehow saves the Fantasy Kingdom from the Prophesised Doom and becomes the hero.
I honestly cant't think of any good examples where game mechanics and stories interacted in a way that gave you significant agency while still being fun. I'd love to be given contra-examples though.
I think of the Mass Effect games and their attempts at this, "Oh you were only 92% Paragon, so now we're at the end, _this_ crew-member has to die for some reason, if only you'd known that 30 hours of gameplay ago when you punched that grifter in the Citadel!"
Or one I still bear a massive, MASSIVE grudge against, Fable III, where if you didn't massively grind for resources before the bit you thought was the end-game - where you fought and defeated the evil oppressive king, you found yourself making ridiculously stupid binary decisions like "Should this multi-storey building be used as an orphanage? Or as a whore-house?" That's literally one of the decisions you had to make. Oh, and the game made sure to tell you "Btw, because you didn't grind enough, if you choose the way that earns less money, EVERY ONE DIES BECAUSE YOU WANTED TO HELP THE ORPHANS."
It was an interesting attempt, to be sure, a brave experiment but I resented the game so much for the heel turn it pulled - "Actually, the evil oppressive money grubbing king you overthrew was RIGHT! Now you have to do what he was doing! Mwahahaha! Irony!"
Worst of all, it never let me make nuanced choices - why can't it be orphans downstairs, sex workers upstairs, and during the daytime, I pay the sex-workers to look after the orphans? Nope, it was either "look after the innocent children" or "four floors of whores". Complete with animations of crying children if you chose sex-workers. Or crying sex-workers if you chose the children. Once again, not kidding.
Once you knew the heel-turn twist, you could game it massively beforehand, one of the best strategies was to buy properties, become an incredibly oppressive landlord by demanding extortionate rents, so when it came time for the "orphans/whores" decisions, you had so much money you could could choose the good path and everyone declared you a saint.
But I felt so disrespected by the game that I didn't even bother.
That's the problem - good stories need direction towards a satisfying end, and it's really hard to give a player agency in a good narrative, and so I felt railroaded into comically absurd black/white choices.
Honestly, I think the only games that have ever done the good/evil choices in a story well were the Knights of The Old Republic series, but once again, it stopped being so much fun when I had to keep on being evil because I'd chosen evil stuff prior.
Can't I just be evil today, and maybe a bit nice tomorrow? After all, the best villains are the mercurial ones.