Balthazar started to experiment with virtual reality headsets at art school, exploring how to achieve a new kind of immersive storytelling experience. Eidolon, his first VR project, was released in 2011. Fascinated by the artistic potential of the medium, two other projects arose from his explorations: The Fifth Sleep (2013) and The Cave (2014). In 2014, he founded Innerspace with Hayoun Kwon. The company is a pioneering studio dedicated to producing entertainment and interactive content exclusively for virtual reality. Today with Innerspace, he continues his exploration of the medium with multiple projects and collaborations.