Oleksi Onttonen - is a video game composer. Oleksi Onttonen began his career in 2011 and has worked for companies such as Colossal Order and Paradox Interactive. Oleksi Onttonen's first game was Cities in Motion: Design Classics which was released 14 years ago. Best Game Oleksi Onttonen contributed to was Cities in Motion: Design Classics. Oleksi Onttonen's latest work is Cities in Motion: Design Classics which was released 14 years ago.