PCThis video provides a sneak peek of Epic's Unreal Engine 4 running in Firefox at near-native speeds. Game demos shown include: Epic's Soul and Swing Ninja running on the Web without plugins. More Unreal Engine 3 Videos Unreal Engine 4 ‘Features’ GDC 2014 Trailer Unreal Engine 3 GDC 2012 ‘Features’ Trailer Unreal Engine 3 GDC 2009 Tech Demo Trailer March 14, 2014 - 6:02pm