> Gambling disorder is the only behavioral addiction (as opposed to substance use) identified in DSM-5. There is no such thing as video game addition. Video games do not directly hijack the substrates your brain uses for calculating motivation and interest. It's just another stimuli coming in through your normal senses. There is nothing magical, good or bad, about stimuli on screens.
I don’t believe anything about the definition of addiction has to do with how it “hijacks your substrate”. As far as I found - OP is describing addiction: an overwhelming desire to do something one knows is harmful, which provides no benefit to one’s life, that one cannot maintain a healthy relationship with.