How will my character's stats make a difference in an action-based system?
Think of it this way - in PnP Dungeons & Dragons, player skill means understanding the combat and magic systems, knowing how initiative works, and optimizing your character's position and movement to use the rules for attacks of opportunity, bull rushes, spell ranges, etc. to your advantage. In our game, player skill means mastering the movement and targeting controls, learning to predict the movements and behaviors of various monsters, and making decisive tactical decisions in a real-time environment. Player skill is important in both games, but skill and character stats together are what determine the actual "power" of a given character.