The only big gaming series that I can think of that who undoubtedly the main character is black and isn't some form of an avatar is Telltale's Walking Dead and that's a lincesed game from a now dead company, that's really sad
Reminder, I will write your oc or anything else in any type of story you wish for free, just give me the basic details so I don't write them wrong and I will turn down NSFW stuff and bigoted stuff