Descent 2 Workshop still lives, soon enough I should be posting builds on Github, though if you want one you can always bug me for one. It'll probably have bugs and unimplemented features, since at the moment I'm focusing effort on features that people are demonstrating that they want. HAM and HXM editing is pretty mature now, and at least a couple of people are trying to make levelsets with it ATM. But I'm still around and working on crap.