Jackbox GamesPreviously a part of Jellyvision Games Inc., Jackbox Games was established as a separate subsidiary entity in 2013. The company is best known for their trivia comedy series You Don't Know Jack. Jackbox Games focuses on party and comedy games which have been released on a number of platforms, including PC, Xbox One, and PS4. They are based in Chicago, Illinois and have been producing games for over 25 years.