Speaking to Spong at the BAFTA Video Game Awards, the exec explained that the firm is working on similar projects within the genre that the game created.
"We created the genre," he said. "We own the genre, and we want to show that Heavy Rain was not a coincidence or a lucky shot - that it was really something that makes sense and that we can build on.
"But at the same time I didn't want to make a sequel. I made that very clear before knowing whether the game would be a success or a failure, because I want to show that it's really a genre. Which means that you can use a similar drama to tell any type of story in any genre and in any style.
He added: "So, we are going to explore different directions. Still very dark, still for adults, but completely different from Heavy Rain. We want to satisfy our fans, but we want to surprise them too. That's our challenge."
Heavy Rain was released as a PS3 exclusive in February 2010. The game sold over one million copies with in its first three months, and was followed by a PS Move edition.
Quantic Dream is currently working on two unnamed projects.