5. Risk

Want the perfect game to bring the overly competitive jerk-side out of you and everyone around you? Well, here it is! Seriously though, this game is ADDICTIVE. To make it the most fun, secretly text a friend who could help you during the game, start a secret alliance, and then stab them in the back at the last minute to win. Never fails to start fights, but I do it every time. Game tip -- spring for Australia.