"This story structure was extremely ambitious in the fact that simultaneously you had four different states of the human subconscious that represented different dream states and each one affected the other."
VOA: standard.2010.07.16
Eachdream features a rich learning experience and applications, books, games and videos that allow children ages 3 to 12 to naturally explore their dreams and learn at the same time.
Part of that is game design, but another major piece of the puzzle is the engines driving those games -- each game that Quantic Dream makes is built in a unique game engine, which is both very expensive and very time-consuming.