UPBGE (Uchronia Project Blender Game Engine) is a fork of Blender created by Porteries Tristan (a Blender Game Engine developer) and some of his friends in September 2015.
UPBGE 0.3.0+ is one of the best engines I have ever used, its only in an early alpha but its use of the eevee engine as a frame is excellent and I love what I can make with it quickly!
Nice!
+ Very intuitive to use
+ Editor + Engine combined (and a lot more!)
+ Very active Devs