Among the truckload of world premieres at today's Xbox E3 event was the debut of Dying Light 2. The first-person apocalyptic survival sequel is equal parts parkour and zombies. This time, everything in the game changes based on your decisions, so you'll need to choose wisely while trying to stay alive. For example, you can choose to free up a water control point to help a nearby city or team up with people you meet rather than killing them. Depending on what you choose, what comes next in the game will be much different.