Unigine Corp has issued another status update concerning their cross-platform, visually amazing, and very advanced engine. Sadly while the Unigine Engine continues picking up more features that makes it further in front of the open-source game engine alternatives, it's still not widely powering many titles.
In the Unigine Engine developer update to kick off October, there's been a lot of improvements to the Unigine Engine documentation and SDK Reference Manual, support for background loading of nodes in a separate system thread with also having async content streaming, GUI improvements, and a number of renderer updates. The UnigineScript interpreter is now also thread-safe, there's Apple iOS 7.0 support for the Unigine Engine, and numerous other improvements to the engine and its tools and APIs/interfaces.
More details on these latest Unigine Engine improvements can be found at Unigine.com