Sebastien Gaillard - is a video game designer. Sebastien Gaillard began his career in 2015 and has worked for companies such as DONTNOD Entertainment, Square Enix and Feral Interactive. Sebastien Gaillard's first game was Life is Strange which was released 6 years ago. Best Game Sebastien Gaillard contributed to was Life is Strange. Sebastien Gaillard's latest work is Life is Strange which was released 6 years ago.