VxWorks is about that I believe. When you reach these kinds of price tags though it's hard to evaluate them on a per seat basis, because they tend to come with

VxWorks is about that I believe. When you reach these kinds of price tags though it's hard to evaluate them on a per seat basis, because they tend to come with built-in consultants, etc. CryEngine 3 is notoriously $1.2 million, but I believe that's a "total cost" rather than a per seat style license.