Nation 12 was an electronic music collaboration between John Foxx and Tim Simenon from the late 80s. Trond from the marvelous Dusty Shelf blog asked me to ask JF about it as it is a fairly important period of music history in that it spawned some classic computer game music, and we all know how many hours we spent listening to that as kids. Sadly it seems no one really knows who is the copyright holder of that 8-bit music [note: it should be John and Tim as they wrote it], and therefore its unlikely to get the re-release it deserves. Not all computer game music is created equal!
There is of course a re-issue of the studio recordings they made together which you can read about here