Øystein Eftevaag - is a video game programmer. Øystein Eftevaag began his career in 2015 and has worked for companies such as Alice & Smith. Øystein Eftevaag's first game was The Black Watchmen which was released 8 years ago. Best Game Øystein Eftevaag contributed to was The Black Watchmen. Øystein Eftevaag's latest work is The Black Watchmen which was released 8 years ago.