The Free Voters (Freie Wähler) party is becoming a more serious competitor in the German party system. It gained parliamentary representation in the Rhineland Palatine in 2021 and has been governing with the Christian Social Union in Bavaria since 2018. In addition, the Free Voters party now holds two of the 96 German parliamentary member positions in the European Parliament and is, at the federal level, the extraparliamentary opposition party with the greatest number of votes. Nevertheless, there has, to date, been no analysis examining people’s motives for voting for the Free Voters or exploring their future openness to voting for the party. This article addresses this oversight by identifying factors, based on population-representative data from the 2021 Bundestag elections, that favour openness and voting for this increasingly influential party. Our analysis shows that a more general dissatisfaction with democratic outputs, a conservative attitude, and low perceptions of spatial distance from the political positions of the Free Voters have significant positive effects.