https://en.wikipedia.org/wiki/Software_patents_under_the_European_Patent_Convention
The European Patent Convention (EPC), Article 52, paragraph 2, excludes from patentability, in particular
...
schemes, rules and methods for performing mental acts, playing games or doing business, and programs for computers; [emphasis added]
That excludes video game related patents twice in one line.
What big shift do you expect? Even regarding 3D realism we are way past the point of diminishing returns in terms of development costs.