From the announcement:
In celebration of the fall, we will be offering 20% off from now through October 13, 2014. Just enter fall14 at check out. Also, some items are on sale for more than 20% in the 15/18mm Dungeon Crawl section so check there for saving of close to 30%.
Please note that the 30% sale items will show as on sale while the rest of the website will not show as on sale but the price will be corrected at check out once you have entered fall14 .