 Modal fictionalism should be of interest to those concerned with the metaphysics of modality, since theories committed to the literal existence of possible worlds (and, even more worryingly, the literal existence of merely possible objects ‘contained’ in these worlds) come at a cost, both to economy and to many people’s intuitions. But it is, or should be, of wider interest as well, since it is one of the most discussed applications of a fictionalist treatment of abstract objects, along with mathematical fictionalism. Lessons learned in the case of modal fictionalism can hopefully be applied to other areas in which we may wish to evade literal theoretical commitments. Modal fictionalism continues to be an active topic of research and debate, and as well as dozens of papers supporting or criticising modal fictionalism, there is even a published monograph on the topic (Warzoszczak  2014).