If you haven't heard yet 3D Realms, the makers of Duke Nukem appear to have gone out of business . All of the employees were informed yesterday, so it looks like Duke Nukem Forever may never go gold. I'm sure at some point in time the Duke Nukem brand will be sold to another company, which might be a good thing considering how 3D Realms has managed the franchise for the last ~12 years.

Fortunately, about a month ago 3D Realms released the rest of their unsupported games as freeware, including the entire Kroz series (with source).