The most wonderful game in world

We kindly would like to clarify that the question is not completely clear, as the issue is relative
In case you are asking about mathematics, the most popular sports in the world is football, but at the level of each region, the case varies from one country to another. Let's suppose to be in America, American football, basketball and baseball are more popular in Southeast Asia, things like football and cricket and in other regions are basketball, but globally football is the most famous game.
On the other hand, if you mean electronic games, things like GTA, Minecraft and many other games are different in popularity.