The second generation of Assassin's Creed is mainly composed of three works, which introduce the life of legendary assassin Agio. Assassin's Creed 2 mainly talks about the great changes in Agio's family when he was young, and he embarked on the road of assassination. The Brotherhood is mainly the story of the adult Agio leading the Brotherhood to drive the Knights Templar out of Rome and liberate Rome. Revelation is mainly about the process that old Eggio opened the library to find the wealth left by his ancestor Artell, looking for five keys. Assassin's Creed III tells the story of the feud between the assassin and the Templar in the colonial era of North America, and the growth experience of the young assassin. Personally, I feel that the most successful of the four works is Brotherhood, which is the peak of both the story and the game operation. Assassin's creed 2 is still immature, and Apocalypse thinks old Sergio is useless. As for Assassin's Creed, they feel more modern and have no sense of history. Moreover, they mainly talk about American culture. In addition, in the game, the hero kills his friends and father one after another for his beliefs, which is too bloody and not fun.