Preußen Münster played out the 1960s and 1970s as a second division side in the Regionalliga West and 2. Bundesliga Nord. In the 1970s the Preußen made several attempts to return to Bundesliga. Under club president Günter Wellerdieck (from 1970 to 1978) the club took a considerable financial risk to achieve the promotion to first tier. Preußen failed to do so by finishing on 5th place in the 1973–74 season and on 3rd place in the 1977–78 and 1978–79 seasons. After Wellerdieck and other staff of the club's management resigned due to financial difficulties and accusations of tax fraud in 1978, the decline of Preußen Münster continued. They slipped to the Amateur Oberliga Westfalen (III) in the 1981–82 season, and except for a short adventure in the 2. Bundesliga in the 1990 and 1991 seasons, played third tier football in the Regionalliga West/Sudwest (1993–2000) and Regionalliga Nord until 2006. During this period, they captured the German Amateur Championship in 1994 with a 1–0 win over Kickers Offenbach.