I don't know if CDP will ever read this, or even if this place is the right one to post this, but I think the site needs a spanish language localization. Especifically for latam. Tried contacting via form/email but didn't find anything.

I don't think they care about south america

You can vote for the relevant community wishlist entry:
Spanish as GOG supported language / espanol como idioma oficial en GOG

Edit: forum can't handle diacritics in links.