D&D Next has posited that the Fantasy RPG Genre is built on three main pillars: Combat, Roleplaying, & Exploration.
Over the course of the last year, we’ve distilled the essential experiences of D&D down into three general categories: exploration, roleplaying, and combat. We believe these form the three main pillars of gameplay in D&D, and, while broad, they can help guide our design.
A part of the design philosophy going forward is that each of those three elements contains some very specific things that contribute to the game and culture that is Dungeons & Dragons. However, we also know that individual DMs, players, and gaming groups might favor one of those elements over another; of course, sometimes they might favor one element over the others in one session, and then completely reverse that preference in the next. The goal, then, is to support all three of those elements in the design of the game in such a way that the individual gaming group can choose its focus and have a satisfying game experience. This doesn’t mean we necessarily need the same amount of game mechanics supporting each; obviously, combat has tended more toward detail and more rules support, and that may well be true going forward, but we also want to make sure we’re paying a similar amount of attention to the other two experiences.
This philosophy is something we want to extend beyond just character design; it should affect adventure design, monster design, setting design, and every other aspect of the game. Our goal is to make it so that you make choices for your character that speak to your preferred play style, and that it’s OK to do so even if other members of your party make choices pointing toward a different play style. Adventuring demands a certain amount of competence in all three areas of the game, but when you customize your character you might push yourself more in one direction or another.