Mariina Hallikainen - is a video game producer. Mariina Hallikainen began his career in 2015 and has worked for companies such as Colossal Order and Paradox Interactive. Mariina Hallikainen's first game was Cities: Skylines which was released 9 years ago. Best Game Mariina Hallikainen contributed to was Cities: Skylines 2. Mariina Hallikainen's latest work is Cities: Skylines 2 which was released 6 months ago.