What Franchises Have You Played All Installments of? (Minimum of 3 Games per Answer)

[Never]

I say all zeldas and mario platformers if you discount the cdi games.
Quake, Doom, Mario kart, Deus ex, Donkey Kong Country, F-zero, Mario & luigi, Monkey Island, Half life (Including all expansions and eps 1 and 2).