Watchdog is a role-playing game released by Ubisoft on 20 13, which adopts an open-world sandbox game. The game tells a very wonderful story. The game uses the new AnvilNext engine, creating a vast and huge world. This open world adventure game takes place in Chicago. At that time, almost everything had built-in electronic devices, and the whole city was relying on them. The player wants to play aiden pearce, who is proficient in hacking, so he decides to use his special skills to punish the corrupt elements in the whole city and eliminate evil. With its high degree of freedom, excellent game quality and rich game content, the game is recognized by the industry as the gateway to the next generation of games, and is rated as the best shooting game of the year by IGN [1]. The English version of Watchdog was released on May 27th, 20 14, and the Chinese version was released on June 25th. The current genuine price of steam is shown in the figure.