In counseling, we call those process addictions. Internet gaming, sexual addictions, gambling, shopping etc. are all process addictions. Psychological addiction isn’t precise enough as any chemical addiction could have a strong psychological component as well, and almost always does because addictions create habits of use and habits are difficult to break. Also, for instance, we might have to ditch our drinking buddies when we have alcoholism because being around them triggers our urge to drink psychologically.