Which is the No 1 game to earn money?

Could you please provide me with a detailed description of which game currently ranks as the top choice for earning money? I'm particularly interested in understanding what factors contribute to its popularity in this regard. Is it the game's unique mechanics? Its large and active player base? Or perhaps the ease of converting in-game earnings into real-world currency? I'd also like to know if there are any specific strategies or skills required to maximize earnings within this game. Finally, could you provide any insight into the potential risks involved in trying to earn money through gaming, and how players can ensure their safety while pursuing this avenue?