How long is the main story of Horizon zero dawn?

Related questions

1. Where is Maker's end?
2. Where is the grave hoard?
3. What do power cells do in Astroneer?
4. What machines can you ride in Horizon zero dawn?
5. How do you get the shield Weaver outfit?
6. What is the most powerful machine in Horizon zero dawn?
7. How do cells get energy?
8. What is the difference between an electric cell and a battery?
9. What is a power cell?
10. How many side quests are there in horizon?

Tags

1. #category
2. #after
3. #hours
4. #games
5. #average
6. #easily
7. #comes
8. #sizes
9. #horizon
10. #recent
11. #action
12. #offer
13. #reports
14. #story
15. #missions
16. #world
17. #between
18. #under
19. #includes
20. #along
21. #according