Btw, ahora que han salido las reviews, estimaciones de duración:
GameSpot
Peter played Horizon Zero Dawn for 55 hours, finishing the main questline and enough side quests for an 80% completion rating.
RPGSite
I took approximately thirty-five hours to complete Horizon Zero Dawn’s main story, but the first thing I did after I finished was dive right back in
GameInformer
None of Horizon's faults stopped me from sinking 55 hours into the game, or walking away supremely satisfied with the experience. Horizon may not be a revolution for the open-world genre, but it is a highly polished and compelling adventure that proves Guerrilla is more than a single franchise.
GamingTrend
Horizon Zero Dawn is at its best when the player is out in the world, exploring vast landscapes, encountering deadly machines, gaining new abilities and skills, and taking on side quests. From my 40 hours so far playing Horizon Zero Dawn, about three-quarters of my time was spent doing exactly that, and it was an absolute blast.
GameRevolution
While I have 42 hours of playtime clocked into Horizon: Zero Dawn, it feels as though the surface has barely been scratched.