What you are asking for is essentially areas of computing where you want to get the most out of the hardware. Non-casual games is one such area. Some parts of f

What you are asking for is essentially areas of computing where you want to get the most out of the hardware. Non-casual games is one such area. Some parts of finance is another. I'm not sure why you are referring to it as "games". The high-level programming you can enjoy today rely on efficient low-level implementations. You might not see them, but they are still there and still being developed.