What is the most expensive game ever made Genshin Impact?

Excuse me, but I couldn't help but notice your mention of Genshin Impact being the most expensive game ever made. May I inquire as to the specifics behind this claim? I'm genuinely curious about the factors that contribute to such a high cost, whether it's the extensive development process, the state-of-the-art graphics and animations, or perhaps the extensive marketing and advertising campaigns. Could you elaborate on what makes Genshin Impact stand out in terms of its budget and production value?