You Don't Know Jack is a trivia game developed by Jellyvision for the Xbox 360. The game was released on February 8, 2011.
You Don't Know Jack (YDKJ) is the remake and re-introduction of the computer trivia game that even spawned a short lived television series with Pee Wee Herman as host. Because it's a game that's based on modern trivia and other little known facts, it's easily updated and made interesting and exciting for any new decade. Read More.