Indie Games are only available to play in the following countries:
That list could change in the future. Although I don't know the actual reason why Indie Games aren't available everywhere, I heard it rumored it's because a lot of countries won't allow the sale of 'unrated' games. XBox Indie games aren't rated by a ratings board.
Note that although you can only buy an Indie game from one of the above listed countries, people who live in the following countries are allowed to create and SELL Indie games on the XBox:
- United States
- United Kingdom
- New Zealand