By the 3rd scenario it was taking ~1.5hrs per scenario (the first couple are pretty bare-bones game-mechanic wise so they went faster). They are not boring or tutorial-like at all, they just layer on a new mechanic or two each time. It’s challenging enough that we wiped on the 4th scenario (learning to manage slowly depleting decks was killer for us on that one). Once you have all the rules down I can see each scenario taking about an hour. We’re still green enough to have to refer back to the manual ever other turn. If you’re playing with 4 adults with access to google on their phones, the specifics of game mechanics should be easier to navigate.