> I would attribute most of the difference to this, but I would go further in that there just aren't that many successful international games period. LoL, WoW,

> I would attribute most of the difference to this, but I would go further in that there just aren't that many successful international games period. LoL, WoW, Hearthstone, DotA 2 are some of the most popular games and they're popular world-wide, not just in the US and they're competitive games. DotA 2, for example, has servers for different regions so at least the language barrier issue is not as bad. Bootstrapping is not an issue when you have good marketing, because you can have a large "launch" that people were waiting for. Maybe a single-player mode is useful to bring in people who are not confident in their skills as well.