Great game from the creators of Fluxx.  Alter the timeline in this fun and dynamic time-traveling game.  Collect artifacts like a convincing copy of the Mona Lisa, a sports almanac from the future, or even live dinosaurs while changing the course of history to get back to your home timeline.  This is a great game to play with three or four history buffs.  What do you think would happen if John Lennon survived his assassination?