around 19h h for the main story and around 35h30 h for 100% completion, based on community completion data on GameChart.
Assassin's Creed 2 has 10 chapters with 66 missions recorded. Players rate every chapter on GameChart.
Community ratings put "Rocky Road" as the lowest-rated chapter (7.0/10 across 1 votes), while "The Merchant of Venice" scores highest (10.0/10).