Fee vs Free Games:
World of Warcraft, SimCity, and Dance Dance Revolution have similar online counterparts that are free.
Fee: World of Warcraft
Free: D&D Online
Fee: Hasbro Family Game Night
Free: Risk
Fee: Tiger Woods ’10
Free: World Golf Tour
Fee: Bejeweled Twist
Free: Bejeweled Blitz
Fee: Call of Duty: Modern Warfare 2
Free: Battlefield Heroes
Fee: Diner Dash
Free: Penguin Diner
Fee: Sim City
Free: Sim City Classic
Fee: Dance Dance Revolution
Free: Dance Monkey Dance