My 7 year old daughter plays video games excessively, and I believe they are addictive and unhealthy. I want to limit her time on them, but my husband is stone walling me on that. He also has addictions to video games, so that's no surprise.
I took her to a psychologist for a while. I don't know if you would consider that. It can be difficult to find psychologists who take health insurance. We found one that took ours, and we paid a $25 co pay for each session. The psychologist did play therapy with her. I think it helped her some, but at the time she wasn't doing video gaming.