For a close second here's a 1985 issue of the TPUG Magazine [1], from the Toronto PET Users Group. I attended a few meetings of the Niagara Commodore Users Group and spent all of my paper-route and fruit-picking income on arcade games and my C64 system.

[1] https://www.tpug.ca/tpug-media/tpugmag/TPUG_Issue_15_1985_Ju...