After the conservative step forward that was Orcs Must Die 3, the cult-favorite franchise is back with Orcs Must Die! Deathtrap, a sequel that is both more inventive and more derivative than its predecessors. Deathtrap's greatest departure from series' convention is its roguelike gameplay, while the meat and potatoes of the experience is left more or less untouched. This can be a mixed bag. On the one hand, why fix what isn't broken? But at the same time, some of the game's broader structural elements can feel tacked-on and underbaked.