See the Unreal 4 engine in action in this trailer for Primal Carnage Genesis.
Houdini Engine for Autodesk Maya
SideFX have released Houdini Engine for Maya, with 3ds Max and Unreal versions coming soon.
Unreal Engine 2014 Gameplay Reel
See the highlights of some of the games built with Unreal Engine technology in this gameplay reel.
3dmotive - Game Asset Tutorial
There's a new game asset tutorial at 3dmotive, focusing on creating a briefcase game asset to be used in the Unreal engine.