This paper traces and assesses the trajectories of democratic innovations (DIs) in Germany across levels of governance and over time since 1990, providing novel and original data. We focus on three types of DIs that have been applied in Germany: direct democratic instruments, participatory budgeting, and deliberative mini-publics (DMPs). DIs proliferated differently across the different levels of governance (local, state, and federal), with shifting peaks in popularity and differing evolutions in process design and regulations. Going beyond description, this paper discusses the trajectories of DIs by applying a theoretical framework based, firstly, on Elstub and Escobar’s concept of DIs as providing opportunities for citizens (in participation, deliberation, and influence) and, secondly, on Warren’s system-oriented approach on democratic functions (these being empowered inclusion, collective will-formation, and collective decision-making). This framework provides a useful tool for analysing how the trajectories of DIs in Germany have affected citizens’ opportunities. Combined, these trajectories show a movement towards opportunities for inclusive participation, deliberation, and will-formation of a few citizens in DMPs, rather than opportunities for empowered participation or influence on political agendas and decisions.