Video game publisher Activision has released the first trailer for its upcoming video game for The Walking Dead. This is not to be confused with the Telltalle Games trailer that was released back in March. Activision's game is actually set before The Walking Dead Season 1, and centers on brothers Merle and Daryl Dixon (played by Michael Rooker and Norman Reedus in the TV series), as they make their way to Atlanta, seeking refuge from the zombie scourge. Take a look at this video, and read on for more details on the game, set for release in 2013.The Walking Dead game will be available on XBox 360, Playstation 3, and PC formats next year. Players will control Daryl, and decide whether they want to take out the zombies and risk detection, or sneak by them. Users will also hunt down scarce supplies on their journey, where they will encounter a number of unidentified characters along the way. to visit the official website, where you can pre-order the game.