As freelance game designer, Schönfelder worked on games for various platforms and companies.
Her games won several awards, including the «Most Amazing Game Award» at the A.MAZE festival in Berlin, the «Red Dot Design Award» and an award by the Art Directors Club. Media like Rock, Paper, Shotgun, Spiegel-Online and The Independent reported on her work.
Schönfelder was invited as a speaker to conferences like the Game Developers Conference in San Francisco and Tokyo Game Show. She worked as a judge for game events like the Independent Games Festival in San Francisco and the Nordic Game Indie Night in Malmö. As a curator, she was involved in the Indie Track at FMX Conference on Animation, Effects, Games and Transmedia in Stuttgart and Spielsalon Kassel.