What is the state of deliberative democracy in the age of serial crisis? This survey article provides a descriptive and reflective assessment of recent developments in the field in the light of a political context in which there is growing incivility, political polarization, normalization of disinformation and the growing appeal of finding simplistic solutions to complex problems. We describe deliberative democracy as a field of research that has evolved to become (a) assertive in practice, (b) precise in theory, (c) global in reach and (d) ambitious in empirical research. For each of these facets of deliberative democracy, we reflect on the extent to which the field has responded to conceptual, empirical and political challenges, and identify its shortcomings, which warrant further attention. We conclude by drawing attention to research imperatives that the field needs to address to remain relevant in a highly unequal, climate-challenged and increasingly fragile global public sphere.