From the announcement:
Who's your Danny Glover or Mel Gibson gaming buddy? Whoever he is, now's your chance to team up for battles in the age of madness with our sale of madness!
From 9:00 AM EST on Thursday, Nov. 27 though 11:00 PM EST Monday, Dec. 1 you can order the print edition of Warfare in the Age of Madness from our store at Lulu.com for just $14.99. That's 25% of the regular price of $19.99.
In addition, when you e-mail that receipt for your print edition purchase during the period above to SaleOfMadness@gmail.com, we'll e-mail you a FREE copy of the PDF edition which you can keep for yourself or give to a gaming buddy.
So that's a print edition of the game and a PDF copy for your buddy for just $14.99!
This offer applies ONLY to print edition purchases during the period above and excludes all previous purchases.