Is wog is required?

I wonder If the vcmi is able to run only the wog version or it may able the complete game too?

Did you read the manual? This info is mentioned in many different places.

SoD install + Wog 3.58 files are required. You may get it here.

so if i dont like the wog… i shouldn’t play it?

Did you spend a moment to learn just basic info about what our project is?
Your question has already been answered many times on this board page: