I don’t think that applied to HHGTTG—it follows the rules of ordinary interactive fiction, and doesn’t need additional explanation. And I wouldn’t call the game

I don’t think that applied to HHGTTG—it follows the rules of ordinary interactive fiction, and doesn’t need additional explanation. And I wouldn’t call the game difficult. Difficulty implies that there is skill involved. Instead, it’s just a grind getting through the game figuring out a couple things each time you run through it.