Half-Life 2: Episode Four
 

Is it weird that we seem to know more about Episode Four than Episode Three? The story is that there were a couple of Half-Life spin-offs in development that were eventually cancelled; this was Arkane Studios' version: "Return to Ravenholm." …these new screenshots come to us via the personal portfolio of Robert Wilinski, a Senior Environment Artist at Arkane Studios between 2007 and 2008, who was likely an important component within the "Return to Ravenholm" and "The Crossing" projects. A deeper discussion of these screenshots can be found in the Spotlight Exclusive episode listed above.

http://www.hardocp.com/news/2015/12/..._episode_four/