Stefan Kaegi produces documentary stage plays, radio plays and interventions in urban space in a wide variety of constellations. The pieces are developed on location by means of research, auditions, and conceptual processes. Kaegi’s approach is to enable so called “reality experts” to find expression in the productions. Kaegi’s model train world "Mnemopark" arose in this manner, as a live film set on a 1:87 scale that was shown in over 30 cities between Tokyo and Montreal. Kaegi toured more than 2 years along with two Bulgarian lorry drivers and a refitted lorry throughout Europe with the project “Cargo Sofia”. In Cairo in 2008 he developed “Radio Muezzin” – a project about the call to prayer in the age of its technical reproducibility. In 2009, he staged a piece with 10,000 locusts for the Zurich Schauspielhaus, as well as a pirated copy of “Sicherheitskonferenz” around a round table in Munich’s Kammerspiele. In 2011 he turned to Russian-German oil pipelines in "Bodenprobe Kasachstan”. In 2010, Stefan Kaegi was awarded the “Routes Award for Cultural Diversity” from the European Cultural Foundation.
Kaegi works together with Helgard Haug and Daniel Wetzel under the label “Rimini Protokoll”. Recent productions include “Call Cutta in a Box”, a live telephone conversation from an Indian call centre, “100% Berlin”, a live statistical procedure for 100 citizens on a revolving stage, and “Hauptversammlung”, a parasitic intervention on the occasion of the Daimler AG stockholders’ meeting, as well as the production “Lagos Business Angels”, in which 5 Nigerian business people met 5 of their German counterparts. Since 2006 Kaegi has often worked with Lola Arias. In 2010 they devised and co-curated a festival for urban interventions, “Ciudades Paralelas”.
In 2007 Rimini Protokoll was awarded the Faust Theatre Prize and in 2008 the European Prize “New Realities in Theatre”. In 2011 Rimini Protokoll received the Silver Lion at the Theatre Biennale in Venice.