the name of the game
Meaning: You can say something is the name of the game if it's the most important thing you need to know or to have in order to succeed at something.
- In long-distance running, the name of the game is stamina and fitness. No matter how hard you try, if you haven't trained hard and become extremely fit, you cannot win.
- The name of the game in the fashion industry is knowing the right people. Even if you have the best designs, you won't succeed unless the people who matter see them.