But you're saying, "Unity has had a free version for a long time! This isn't news."
But I'm saying, Unity 5 is out NOW, and previously pro-only features are now in the free version, including render-to-texture, pp effects, the profiler... free!
Not bad!
And of course, I downloaded UE4 last night. And Source 2 is gonna be free, too. It's good to be in game dev!