The history of videogames is full of games that failed to turn a profit. There are also a handful of games that are maligned by critics, and are regarded as flops. E.T. and Pacman are arguably some of the first examples of video game flops (not in total sales, but in lower than expected sales that resulted in a financial loss). Battlefield Earth, Diakatana, APB and others for the PC that missed release dates and when finally released did abysmal sales.
What is the largest flop in board game history? I know the stakes in board games are much smaller, with print runs in the low thousands usually, but surely there must be an example of a board game that had much lower than expected sales, and the publisher took a big loss.