The second part ("less technical stuff") specifically notes that they used Steam...

masklinn on June 25, 2017 | parent | context | favorite | on: Localizing “Papers, Please” (2014)

The second part ("less technical stuff") specifically notes that they used Steam's private branches to beta-test the localisation and that the supported languages are Italian, Japanese, Spanish, French, German, Russian and Brazilian Portuguese.

So yes and yes.

paines on June 25, 2017 [–]

Thank you. Didn't saw that there is a 2nd part!