just the main story alone? I'd say around 60-70 hours (including the Asgard arc), I've played the game for 80+hrs and just beat it not an hour ago, but I did a lot of exploration and world mysteries like getting special weapons and armors. (there is a guy on yt who uploaded the cutscenes alone. It was a 23hrs long video, so expect it to be long)
It will take you approximately 18.5 hours to beat. Assassin’s Creed 2 Assassin's Creed Origins proved to gamers that a 30-hour-long campaign is not too long for Assassin's Creed. The game5h 22m Played. 8.5/10 – Assassin’s Creed Liberation provides an interesting story that, while presented strangely at some parts, is overall very enjoyable. It also uses the same controls and engine as AC3, but lacks many of the bugs and problems I had with AC3. Overall a very fun and short game.VND8QS.