The bundle deal gets its name because it only features top-selling indie D&D supplements. These titles have all made the Platinum best-sellers rank at DriveThruRPG.
DriveThruRPG has kindly pulled some data from their vast marketplace of RPG goodness, and we can now see which RPG titles have come out top.
There are well over 58,000 RPGs and supplements with up to 25% off but only until the end of the month. It's a feeding frenzy of RPG buying.
You don't have to work hard to persuade me that D&D would be a better and more flexible game if its rules were somehow able to adjust to fit each new supplement.