Spy City entered development in 2014, when Boyd created and began writing the show.
[4] The series was shot in Roudnice nad Labem, Plzeň, Prague in Czech Republic, from 27 August to 30 November 2019, subbing for Berlin in 1960s.
[5] The series was co-produced by H&V Entertainment GmbH, ZDF, Seven Stories (UK) and Wilma Film (Czech Republic) and was supported by FFF Bavaria, Nordmedia, German Motion Picture Fund and Czech Film Fund.
[6] Originally, all episodes were released in Germany on 3 December 2020 to the Magenta TV streaming service.
[9] Metacritic, calculated a weighted average score of 72 out of 100 based on 7 critics, indicating "generally favorable reviews".