Quantic Dream boss David Cage says developers are bored of making shooters about space marines, and has challenged them to focus on more mature subject matter.
"Games always explore the same things," he told The Guardian. "They're about being powerful, being the good guys against the bad guys - that's a very tiny part of what can be done.
"There are so many other stories to tell, so many other emotions to trigger - this is a fantastic new medium, we can do much more than we currently do with it."
He added: "I hear many developers... saying the same thing - 'look, I'm 40, I'm fed up of writing games where you shoot at everyone. It was fun when I was 20 but now I want to do something else. I don't watch the same movies as I did when I was 20, I don't listen to the same music, but I'm still making the same games.
"Developers are fed up - they want to talk about their families, politics, whatever - why not in a game? Why not?! There is no reason."
Cage went on to say that winning three BAFTAs for Heavy Rain, including best Story, was "totally unexpected".
"It is the one I was dreaming of. I worked so hard on the story, and it's the first I ever wrote that was based on something personal. It was not about space marines fighting aliens, it was about my relationship with my first son and how he changed my life - and also about how loving someone without expecting anything in return was something totally new. There should be more people trying this."
Heavy Rain was certainly a departure from the norm, and a welcome one at that, but Quantic Dream was fortunate to be backed by Sony, a first party publisher that's committed to funding leftfield projects.
Sony Computer Entertainment UK boss Ray Maguire said last week that gambling on offbeat titles is "fundamental" to the company, but acknowledged there's a "funding issue" when it comes to third party publishers backing games that don't target mass market audiences.
At GDC earlier this month, Cage told CVG that Quantic Dream is beavering away on two "very different" projects - and that when it has finished them, it's going to turn its attention to shaking up the shooter category, possibly with a serious war game.