The Risen3D team have updated their website with news of a new engine version. A host of changes and bugfixes have been applied, as well as some new models and map updates in the optional download section. So get to that download page!
I never get this engine past the launcher...not a single version has ever worked on my machine. Still, Skulltag and zDooM have always worked so I don't think I'll bother faffing around trying to get this to work...