 Modal fictionalism has traditionally been conceived as fictionalism about possible worlds, and implicitly also about their contents. One natural way to extend modal fictionalism so understood is to admit impossible worlds as well. Use of a fiction of impossible worlds is unlikely to seem too extravagant for many modal fictionalists, but it might also provide a mechanism for non-fictionalists about possible worlds to talk of impossible worlds without the extra theoretical costs they fear. So there is a partially fictionalist option of being a realist of some stripe about possible worlds but a fictionalist about impossible worlds (and perhaps other situations, e.g., incomplete or underdetermined ones). This partial fictionalism will face some of the same sorts of questions, and employ the same sorts of strategies, as modal fictionalism about possible worlds.