As of November 2015, "Panic", an anticipated Steam game, was canceled. Panic was going to be a Team Fortress 2 like game, with many interesting classes. The class that is shown on the thumbnail is the nurse class (Lockette). Not much is known about the game, besides the character models, and the YouTube trailer:
Nobody really knows why Panic was cancelled. Maybe it had a low budget, or perhaps not enough attention. No matter why, it was a shame it was canceled. It could have become an iconic game, and gained a lot of kudos.