Music is addictive, watching porn is addictive and everything can be addictive in someway for someone sonwe can't simply generalize the things and target particular game. Personally when I okay slots I just keel on going but I have seen people eho drown in the sport betting as well so it really depends on what kind of game they love.
Addiction to something happens because the sufferer feels comfortable (dopamine effect) when doing that. slots feature amazing animations and also great prizes easily if the player is lucky. I don't like slots but for lottery and soccer betting, I really love and feel addicted 