Update: Now with trailer.
Epic has announced today that Unreal Engine 4 is to dramatically change its licensing model. From now on anyone can subscribe to Unreal Engine 4 for $19 a month, and then release those games commercially for a 5% gross revenue share with the developer. This means that indies no longer need to stick with the Unreal Development Kit, but get the entire engine at what appears an affordable price. And on top of that, they’re releasing the source code to Github. All from 9.30 PT today.