Video games are designed to make you hooked and extract as much as they can from you. You are slaves on the world they created, wasting your consciousness away on a virtual world. And the grinding games are the absolute worst, its just the same gameplay over and over.
Well, if you get hooked to this kind of games it clearly is you who has the problem

Video games are designed to earn money with them, that's for sure.
+1 to this.
Videogames are built to be addicting, yes. But everything is meant to be addicting in this day and age. If you are to watch CNBC the tickets and colors and all that is meant to draw you into watching them because humans like being stimulated like that.
Facebook and other social media companies? They're addicting too.
Most things in the world are addicting, the people that are addicted have an addictive gene.