I've played a lot of endless wave games(I know this isn't not endless) all of them usually make me extremely stressed. But this game is so brutal that it's almost impossible to get stressed and there's no built up anticipation between "Wave 1, Wave 2, Wave 3" it's just a constant stream of enemies, and you're not relieved of that stress when you die because hopping into a new game is exhilarating. All in all, the most addictive "endless" roguelike wave games out there. Great game.