State of Decay drops you right into the action. When you hit New Game, you'll be thrown into a fight with some zombies, which you can hit, push, kick and knock down. The opening sections of the game are somewhat of a tutorial set to get you used to the world and combat without throwing you into too much danger. You're up on Mt Tanner with your friend for a fishing trip and this is your first exposure to zombies. Upon completing the tutorial section, you'll be tasked with driving to the city to meet up with some more survivors and from there, the game is more or less completely open. You will, however, be required to progress the Story missions in order to unlock some things.