Internationalization and accessibility are very important in game development. A lot of time is invested in this and larger studios have dedicated UI/UX teams which spend a lot of time on these issues.

The same is true of backwards compatibilty. As an example, making sure old save data is compatible with new versions is an important consideration.

Source: I'm a game programmer working mainly with graphics and performance, but I previously spent five years working on the UI team at a AAA studio.