In the US, the word "ghetto" is almost exclusively associated with the black community in popular culture. The term "ghetto rig" originates with black cultures; most descriptions involving the word outside of historical narrative directly reference black culture and living spaces. It's also heavily class-based, implying both blackness and poverty.

Outside the US, the term is simply used for low income, close and unpleasant housing and may be loaded with other racial meanings, for instance, the Jewish ghettoes in Germany prior to WW2. However, it's likely that OP is American, given his use of the word in the context of black gaming.