I agree with most replies. Gambling doesnt cause an increase in crime. It can be linked to crime in some areas but the other way around. Crime tries to get into the gambling industry to launder money.
Also think about nowadays. Do you think online gambling from home causes an increase in crimes? Not at all.
Yes,online games nothing related to crimes unless gambling is fully banned in your country.Even the gambling is not related to crimes in most places other than the casinos run but the criminals which also the place where drugs are available.But it maybe causes some crimes because of the people who needs money for gambling due to their addiction level when they get into some stage they do anything for the money which is needed for their gambling activities.