Yes ! A Deadpool video game has been announced. It's titled Deadpool and it is being developed by High Moon Studios. No other details about the game have been announced yet. Watch the trailer here: http://www.ign.com/articles/2012/07/14/comic-con-deadpool-video-game-announced-trailer?utm_campaign=ign+main+twitter&utm_source=twitter&utm_medium=social

And here is the official website: www.deadpoolgame.com