Modern continental thought is skeptical toward happiness and no longer easily reconciles its pursuit with a desire for justice, the good, and truth. Critical theory has unmasked happiness as a commodity within an industry, an ideological tool for control, and a sedative to, justification of, and distraction from social injustice. This article argues that these diagnoses make it all the more important that philosophy, rather than taking leave of happiness, once again turns it into a serious object of thought. Employing the work of Badiou and Agamben as case studies, it asks what a critically informed yet affirmative philosophy of happiness should entail at a structural level. Assessing their philosophical models of happiness, this article 1) recognizes in their work a revival of the ancient ideal of a true, just, and happy life, 2) opens up a new way of evaluating their work, and 3) articulates basic requirements of a contemporary, affirmative philosophy of happiness beyond the happiness industry and its critics.