I concur with you that Etak delivered a functional product, albeit not a commercially successful one, which is farther along than Jodorowsky's Dune project, which stalled mid-way in development.
What I wanted to point out is that both projects produced massive amounts of reusable knowledge, and that knowledge set up the stage for a whole field of influential and exciting derivative works.
What I wanted to point out is that both projects produced massive amounts of reusable knowledge, and that knowledge set up the stage for a whole field of influential and exciting derivative works.