In this article I argue for the continuity of Sartre's theory of alienation. Therefore, I will depict how the concept of 'alienation' is further developed by Sartre since his early writings, by discussing the different forms of alienation in his late oeuvre and in his works on moral philosophy. First, I will take up the differenciation of individual and social alienation and, furthermore, I will discuss Sartre's radicalized form of alienation, which is beyond pure forms of exploitation or recurrence and was not discussed in the literature, yet. I will connect Sartres theory of value in his "L'Être et le Néant" with the theory of alienation in his "Cahiers pour une Moral" and the "Critique de la Raison dialectique".