Starbreeze Studios's will be moving away from single-player games and instead focusing on developing co-op and multiplayer games. In a recent talk at Reboot Develop, developer Almir Listo compared single-player and co-op games, such as Brothers: A Tale of Two Sons and Payday, respectively, and explained that single-player games aren't profitable in the long run.
You need to find the thing that makes it replayable. One of the problems that Brothers: A Tale of Two Sons had for sure was that it’s not replayable. It’s a beautiful story, but it ends. And as many lovely emails as we’ve received about that game, it doesn’t pay salaries.
Payday, however, because the game is replayable like few other games… it allowed us to continue pushing out content for the game, which allowed us to keep monetising the players who were interested in the game.
We’re great at doing co-op games and multiplayer games. That’s why The Walking Dead game we’re making is a co-op game, that’s why the Crossfire game we’re making is a co-op game. We want to focus on that, and leave the single-player games to people like you.
Despite Listo's statement, this doesn't mean Starbreeze will never again develop a single player game. While Listo admits that they will be focusing on what they are good at now, which is co-op games, Listo would rather other studios approach them with new ideas.
Source: Games Industry