His oeuvre includes various types of media and techniques, such as kinetic installations, drawings, paintings, experimental films, video art and performances.
[2] He had a special interest in the number zero (0), as something that does not exist and is intangible, which inspired him to create various works, such as the Zero Counter: a device made with adhesive tape that continuously adds up 0 to 0.
To that end, he modified and appropriated all kinds of technical devices, such as a record player, toaster, or fan, to create movement and images in unconventional ways.
[4] In the 2000s, Horst created a large number of video and audio works, sometimes in combination with 8mm films, as part of performances or installations, in which he also used other media.
[5] Horst's last exhibition, during his life, was at the Rijksmuseum Twenthe, as a participant in a retrospective of 25 years of Media Art at the AKI/ArtEZ, under the title 'Playing on the border of the impossible' (2012-2013).
[10] Finally, Horst also did live video shows, in collaboration with music producer Martin Oude Kempers, operating under the names CRO II and Quantum Leap.