Peter H. Konig is a senior concept artist with over 25 years of experience in the entertainment industry. This includes over 30 films, and numerous high-profile games. In January of 2008, he began work at Valve, where he did artwork on Left 4 Dead 2, Portal 2, and Dota 2. He is also believed to have done some work for Valve’s mysterious new intellectual property: “SOB“. We don’t know much regarding SOB, although some possible footage of the game was leaked two months ago.

But as you can tell from the title, we’ve got some bad news for you today. We’ve just learned that Peter Konig appears to have departed from Valve. The resume found on his official site shows that Peter is currently working at Microsoft’s 343 Industries on Halo 4, and his LinkedIn profile reveals that he stopped working at Valve in January.

This is a huge shame, since Peter was one of Valve’s greatest artists, and was the visionary behind Valve’s most twisted creatures, as well as its most fascinating environments – most of which we haven’t even seen as of yet. Still, he’s not the first to leave Valve, nor will he be the last – although I do find it interesting that he’s the second veteran Valve dev linked to SOB, who’s left the company, in just a couple of months.

That said, I remain confident that SOB will remain on track, in whatever shape or form it may take in the future. Here’s hoping we hear more about it soon.