[JojoJack]

Counting as trilogies series like Mass Effect that got three main games and spin offs out of that.

[Nathan White]

bioshock is definitely my fav!

[asta186]

I really enjoyed the new tomb raider trilogies

[squirrel2k17]

I really enjoyed going back and playing Halo, its easier now with the HD remake

[Nope3]

Bio shock or Jack and Dexter

[abner augusto botelho]

god of war for sure!

[hamiso]

Warcraft has to be one of the best that went to three

[James Angelo]

assassins creed.

[Bg719]

The Dark souls trilogy, the 1st and the 3rd are masterpieces.

[Deidara06007076]

Mass effect