Firewatch as official translated subtitles for Russian, German, Spanish, French and Simplified Chinese, available on all platforms! We do not have plans to release any other official translations at this time.
If you're seeing a completed translation online, it was created by our awesome fans! These translations have not been reviewed or tested by our team so we can not implement them officially, but they can be downloaded and played on PC and Mac! (This is not available on console, unfortunately.) More info here: http://blog.camposanto.com/post/140470564819/translating-firewatch