@Ryan it's highly misleading to suggest that something is addictive just because it has some involvement with the neurotransmitter dopamine - other things that do include music, memory, dreams, colour perception etc. etc.

likewise none of the several reputable studies on the subject have ever shown videogames to be addictive.

People will kill over pretty much anything, but to claim that videogames are 'very addictive' is disingenuous and does a disservice to those dealing with real addiction.