Hi Tess I think "jeu" is not properly translated, as in this context it means a game. If it's a translation for a play (for theater) you should use "une pièce de théâtre" You may use just "pièce" as you would assume it's a play in this context, but it's better to define it. As "pièce" also means "room" or a part of an object. Il a voulu écrire une pièce de théâtre pour plaire à la marquise. Hope it helps

Il a voulu écrire un jeu pour plaire à la marquise. Almost perfect, but "plaire" always have a "e" at the end You can also say this sentence by this order : Pour plaire à la marquise, il a voulu écrire un jeu.