Gears of War: E-Day screenshot. Gears of War: E-Day is renovating the 20-year-old foundations that the franchise was built upon. The Coalition made the decision to start from scratch as it faced the daunting task of transitioning to Unreal Engine 5, opting to recreate every single system, mechanic, and art asset anew as it sought to tell the story of Emergence Day – the day that Sera crumbled, as the Locust emerged from beneath the ground and brought a civilization to its knees.