Price discrimination has a clear definition. It’s not illegal in the US (when consumers are the victims anyway) but it has a clear meaning and you’re blurring the lines for I’m not sure what reason. Your example of a video game doing regional pricing is a perfect example of textbook price discrimination.
Pricing a good or service at a level that inherently excludes those unwilling or unable to pay is: https://en.wikipedia.org/wiki/Excludability