Deep Silver has released a video for Dead Island, showing how the different protagonists of the game need to work together in order to survive the zombie infested island of Banoi. Co-op players will need to use different skillsets to complement each other in battle in order to survive the hordes of zombies awaiting them around every corner. The co-op mechanic in the game allows for up to four players with drop-in/drop-out mechanics throughout the whole game. The Techland actioner has also officially gone gold, and will in stores on September 6 in North America and September 9 in the rest of the world. Watch the video below, courtesy of Ve3tro.