I believe the official definition is a mix of both , basically how much lifting your brain has to do to play the game with some degree of competency , though personally I like it better for just complexity since that narrows down the term a bit better , and a five year old can play Go even if they ' re prolly not going to do very well , but I don ' t think the same could be said of Twilight Imperium . <| sep |> In my group , we roll for our stats , but with restrictions . We also allow the Standard Array for those that choose it . Since the Standard Array is a total of 72 , we only allow rolled stats to be a sum between 70 and 76 . This allows for characters to get better than average stats , but also worse , though not too much in either direction . If the rolls are higher , we must reroll , but if they are lower , they can choose to keep it or reroll some choose to keep for the RP .