i want to develop a game in 3D. Which will be better for me AR or VR?

Could you be more specific about the type of game you want to make? Or are you asking which is easier? Or... something else?

3 hours ago, princepari said:

i want to develop a game in 3D. Which will be better for me AR or VR?

The vast majority of 3D games are neither AR or VR.

Do you have a particular requirement that rules out developing games for PC, mobile, or consoles?

prince, AR is better for you.