As a former game dev who later got a PhD in CS, I can say I definitely did the equivalent of research as part of my job: I had to solve tough new problems that no one else was and verify they worked better than existing approaches. It's definitely more difficult than anything I worked on in industry and was certainly not paid commensurate with the skill required.

Now I've branched off on my own as I've been disillusioned with academia as well. Can't win'em all.