After photography, film/video, and digital media - in particular since the 1990s - have radically altered our understanding of art.In autumn 2014 in Berlin, the Akademie der Künste's Vertigo of Reality exhibition showcased artistic strategies and practices reflecting on and engaging with a viewer's perception and involvement where a work of art, beyond objecthood, is realized, as it were, in and through this very process.This located the current developments in 'game art' within a tradition of artistic critique and debate going back to the 1960s, evident particularly in closed-circuit video installations, but equally apparent in participative and performance projects.The project sought answers to the question of the beholder's repositioning between artwork and reality, highlighting key concepts such as participation and interactivity, and exploring changes to our self-determination which affect all areas of modern life.This three-month live act created texts, photographs and films which are published in this book with exhibition views and a movie download.Featuring over 45 artists including, Bill Viola, Bruce Nauman, Dan Graham, Harun Farocki, Jeppe Hein, Marina Abramovi