DDO Store/Sales

The DDO Store offers discounts, usually changing each week on Thursdays. The information about current sales is available here.

Analysis of sales data
There appear to be twelve sales groups that repeat about every three months, although the actual period can vary between six weeks and six months. The numbers in this table represent the week each sales group was on sale. Groups are sorted in order of how long it has been since they were on sale. It seems that a group won't go on sale again if it has been on sale in the last five weeks.