Ermm...what do you consider "professional quality"? I consider DB more of an independent/starting game developers tool than a professional one. It's more of an introduction to more "industrial" or "professional" game developer tools. DB has potential, as I have seen, and you have seen, as you say twice, but it takes a long time to get together a game like those, and few want to devote their time to a game that, most likely, relatively few will play, and they will make little, if any profit off of, many people are happier with independently developing many smaller, simpler, and lower quality games, instead of one or two high quality, difficult, complex, and large games. Look in the showcase section for games, although I doubt you will consider many of them professional quality
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Video games…they take you places unreachable, unfeasible. Putting you in the book...putting you in the movie...putting you in a world, that before could only be imagined. expage.com/piratesmainpage.