Random FactsCuriousOneMarch 09, 201510, 1680, 2, 70, Days, ever, game, hours, longest, monopoly, months, weeksComment The longest game of Monopoly ever played lasted 1,680 hours (70 days or 10 weeks or 21⁄3 months) Random FactsCuriousOneMarch 09, 201510, 1680, 2, 70, Days, ever, game, hours, longest, monopoly, months, weeksComment