During the PlayStation Experience event, God of War Director Cory Barlog came up on stage to reveal new details on the upcoming God of War. Barlog discussed the game's progress, which is going very well and it's currently in the final stages, and revealed that the game's total playtime is somewhere within 25-35 hours long.
We are in the play testing phase. In fact, we just finished up a playtest. For the last four or five playlists we've been clocking in a total playtime that is somewhere in the arena of 25-35 hours.
Previous God of War games on average take around 10 hours to beat, making this new entry significantly larger than any title in the franchise. This is mainly due the fact that the game features an open world with lots of different paths. Barlog gives the example of the trailer showcased at Paris Games Week, which he explains that it shows an area that players will only find if they decide to explore. With the game featuring this massive world, Barlog hope fans play the game as if it was a "tour bus".
One of the original things I was talking to people about was treating the game like a tour bus. You're in this massive world and we're rewarding the player for being curious. You can pull the string to get off the tour bus and you can kind look around, but the bus is always a few steps away, no matter what you do.
God of War releases in early 2018 exclusively on PS4.