Most milked franchises 

[voty2000]

I disagree with Halo being milked yet. Halo 1,2, and 3 are all 3 years apart. Also, ODST is just an expansion but Halo Wars can be considered milking. I agree that Mario is milked like a champ, but the main series is always awesome.

@ Son1x, where did you get 12 Halo titles?