completionism /kəmˈpliː.ʃən.ɪ.zəm/ noun2 •The goal of achieving every objective in a game, as opposed to merely doing enough to win. •The goal of collecting, visiting, experiencing, etc. every item of a set.Lee's crossover idea was a sales bonanza, propelling Marvel readership inot unheard-of spheres of completionism — 2013
