The download portal offers a special discount on the Risen series (which in this case means only the first two titles with DLCs) for the next 12 hours.

You can get Risen 1 and 2 including the DLCs for under 23 dollars. All without DRM, of course.

The package can be customized, so you can remove titles you already own or don't want and still get a discount (even if it's not that high anymore).