"Our sincere apologies to all of our fantastic, supportive fans over these last few years." said former Creative and Social Director Jeremy Dunham. "We wish we could have done better for you. Thank you very much for your support and we hope to see you again on the other side."
On his Twitter account, Durham indicated he and his colleagues didn't expect the news, saying they "found out in the blink of an eye" about the closure. Furthermore, there's no confirmation as to what this means for the game itself, which remains currently available through browsers and Facebook.
U4IA launched free-to-play shooter Offensive Combat back in 2012, with the lofty aim of providing "the most competitive multiplayer action ever seen within a browser. U4Ia's Dusty Welch, who is credited with launching the Call of Duty franchise at Activision, said back in 2011, "Many studios are making casual games for a core audience. We're making core games for a social audience."
The game reached a million registered players in January 2013, shortly after coming to Facebook, and was actively being updated as recently as last month. We'll update this story as we learn more about the studio's closure.