Complex sentence: Patrice Désilets is a French Canadian Game Designer best known for creating the Assassin's Creed franchise as Creative Director on "Assassin's Creed" & "Assassin's Creed II".
Split into simpler sentences: Patrice Désilets is a French Canadian game designer best known for creating the "Assassin's Creed" series. Désilets served as creative director on "Assassin's Creed" and "Assassin's Creed II".