Translation is a purpose-oriented social activity. A complete translation activity is not a one-man show of the translator, but a common mission finished by the original author, client, target text readers, publisher and other translators. All of them have different translation utilities, and they have cooperation as well as conflicts with each other in the translation process. Translation is actually a multi-player game centering on the translator, and the final translation faithfulness is just a "Nash Equilibrium" between the translator and all other players, which is the guarantee to realize the utility and communicative function of translation. Translator's games not only are necessary but also inevitable for realizing translation faithfulness.