Trey Parker - is a video game writer. Trey Parker began his career in 2014 and has worked for companies such as Obsidian Entertainment, Ubisoft Entertainment and Ubisoft San Francisco. Trey Parker's first game was South Park: The Stick of Truth which was released 10 years ago. Best Game Trey Parker contributed to was South Park: The Stick of Truth. Trey Parker's latest work is South Park: The Fractured But Whole which was released 7 years ago.