Isn't software development already kind of gamified? It's full of little bursts of dopamines and adrenaline -- from that first little "Hello World" to finally tracking down a bug, to seeing your code in production. Its addictive and it already comes with distinct achievements.
I think in a sense it is. Not strictly quantified yet. I was thinking about the adulation or sense of defeat you can get from code reviews. Code is a spectator sport with arbitrary rules that keep changing. Just like Calvinball!