this is a matter to be stated clearly as non English mother-tongue players (like me) can find impossible playing certain games as, for example, Journeyman project ...
thanks
Claudio

here's an unofficial list that will help you:
http://www.gog.com/en/forum/general/list_of_multilingual_games

Hear, hear. This site needs some more slovenian translated games.
Don't worry, it's meant to be a joke.

Officially, all GOG games are English language only, and there is no official support for anything else. Unofficially, in a few cases where the original release had multiple language options, those are still present in the GOG version. If you simply can't play a game in English, then stick to the list WBGhiro linked to, and try to look elsewhere on the net for other language versions.

He only asks to add information about subtitles, nothing more. Especially in adventure games it's for a non-native speaker hard to follow the story if there is only speech and subtitles are missing, so I can understand him. This is also relevant for deaf people btw, so maybe gog should add the information about speech-only games on the gamepage.
Maybe we should expand Miaghstir multilingual games list with the information about english subtitles and also make a list games with speech only games.

I wasn't trying to criticize him, merely to inform him of GOG's official stance on the subject, and advise him on how to proceed from there.
I too think it would be an excellent idea if the game pages contained much more information, including language options, but GOG have repeatedly stated that they support English only at this time, and have no immediate plans to change that. As such, I think they are afraid of adding language information to the game pages, as some people might interpret that as official support of other languages.

I used to hate games without subtitles. I remember Blade Runner and being annoyed at the lack of text on screen. My English was already getting quite good but understanding some of the lines required quite an effort and it was a lot easier to just be able to read it. I was used to old text adventures and speech without text was a bit annoying.

Sorry, I didn't want to sound to harsh. They only need to put a note like "This game only uses voice and no text output" on the page, so nobody could misinterpret that. I badly remember a thread where a deaf gamer asked about subtitles in some games, so this short information would really help some people.
Especially if they give some persons really funny voices or the sound quality is very poor, then I also have problems with the localised version to understand everything. As example, the german voice acting in Flight of the Amazon Queen is really awful.

Yeah, me too. I understand English just fine, but if I'm momentarily distracted by something and miss a word, or there are sound effects or music drowning out something, it's nice to have subtitles. I usually switch on English subtitles when I watch DVDs for the same reason. That means I don't miss anything, and don't have to be subjected to some of the ridiculous translations some Danish translators produce.
Sadly, some games (at least one of the first two Simon The Sorceror games, possibly both) only gives you a choice of either voice acting or subtitles, but not both. I can see no reason for such a restriction. I don't believe subtitles have ever taken up enough system resources to make a difference to performance.

I could put in such info, sure. I'm just a bit concerned that the thread title would no longer be clear enough as to what it contains. It may be better to create a new thread for "Games with/without subtitles" or something.

Yes, a separate thread is maybe better. The idea behind it was to have a thread with all informations for non-native english speakers.
The question is also what other games beside the Simon cd-versions and the journeyman project have speech-only. I tried to find a list for adventures, but found nothing yet.
Edit: The Feeble Files has no full subtitle support.