Clocking in day 1 right now on the Alpha Demo, our testers are noting about 1-2hrs. The full initial story when it launches will have 4 days + two extra chapters. Granted, day 1 and 2 are the longest but the whole thing is sitting around 30-40k word count. Also account for scene transitions and other effects, time gets increased. Yeah sure if you took the scripts out and read them straight without images, 10-12hrs could be doable. But then you'd lose part of the joy of what makes Visual novels great. The art. Do you usually speed run VNs? I don't know many who actually blow through them like that. Could you list some big VNs with over 300k word count and give us your times that you finished them on? Including all alternate routes and endings.
We're in the Lord of the Rings territory when it comes to word count. Which if you look at the time it takes for someone to read it audibly: Fellowship of the Ring is 23hrs, Two Towers is 16hrs, Return of the King is 18hrs. So, our estimates at over 50hrs is not without grounding.