During this year’s GDC, Epic Games demonstrated an amazing open world environment that can be created in Unreal Engine 4. This open world environment – which is 100 square miles – was used in its latest Kite Tech Demo, therefore you’ve already got a glimpse of it. However in Epic’s “The State of Unreal” talk, Epic’s Francois Antoine showcased various weather types in that map, as well as day/night cycle and how that affects lighting and shadows, AI animals that react to the players, and more. The real-time video starts at the 46:00 mark. Enjoy and kudos to our reader ‘Olek S.’ for spotting it!