For the same reason the DC-6 isn’t on XBox (any more). Jorg “explained” it in the dev Q&A. I put “explain” within quotation mark, because the explanation given is so unbelievable. Apparently the XBox machines they use for testing are different from XBox machines sold to the public. And code that runs perfectly on the test machines is not allowed to run on real-life machines. How can something like this happen? But anyway, it is what it is…