video games history book

I'm writing a book, I can say a video player name on it?
I'm writing a book on the history of video games. And I include the names of some video games like World Of Warcraft, and others. Can I do this? Should I place a copyright symbol after the name or something? Or do I have to call the companionship and question permission? Thank you.
You're allowed. Reckon of the advantages of being shy. There must be a hundred books songs, films mentioned by name, and the author surely did not get permission from all! But painting WoW or other games mentioned in a terrible light or making statements fake and you will not mind.