Yes this is a real game and yes it sounds hilarious. Developer Max Clark has now formally announced Flock of Dogs, a 1 - 8 player online / local co-op experience and I'm a little bit in love with the premise and style.
Read the full article here: https://www.gamingonlinux.com/2021/04/flock-of-dogs-will-have-you-and-friends-soar-through-the-clouds-on-flying-dogs-and-a-whale