HOW TO TRANSFER YOUR EXISTING STATE OF DECAY SAVE TO XBOX ONE
If you already own “State of Decay” for Xbox 360, be sure to accept the recent title update for that version. A new option to move your “State of Decay” save to the cloud was added to the main menu, and you should do this step first. Then, when you start “State of Decay: Year-One Survival Edition” on Xbox One, you can retrieve your save from the cloud to pick up where you left off.