Would be better to specify that on the game page.
When voice acting is included with all available languages we just put "English, French, Italian, German, Spanish"
We do put up "Audio and text: English, German. Text only: French, Spanish Italian" when only some of the languages have voice acting.
Hope that helps :)
« Languages: Audio and text: English. Text only: español »
Other languages than English & Spanish are not mentionned.
Many will not buy because of that little (important) detail.
Same thing for the Kyrandia series, they are all multilingual, and it's not mentionned.
I'm still waiting the day when GoG will fix all the pages about included languages.