Update.

Released:
Dear Esther: Landmark Edition
Holy Potatoes! We're in Space?!

Officially announced to be released soon:
Battle Chasers: Nightwar
Blitzkrieg 3
Crawl
Elex
Hollow Knight
Little Nightmares
Nights In the Woods (Feb 2017)
Nine Parchments
Outlast 2
Planet Nomads
The Sexy Brutale
Soul Saga
Spellforce 3
System Shock Remake
The Guild 3
The Long Journey Home
The Universim
Torment: Tides of Numenera
Vikings - Wolves Of Midgard (Mar 28 2017)
Yooka-Laylee (Apr 11 2017)

Still waiting for:
Astroneer
Banner Saga 3
BattleTanx
Black Annex
Captain Quazar
Carnivores
Codename Panzers: Cold War
Constructor HD
Crime Cities
Defender's Quest II
Demon Age
Doorkickers 2
Dragon Fin Soup
Excubitor
Expeditions: Viking
Fallout 3
Fallout: New Vegas Ultimate Edition
Forsaken
Furi
Future Unfolding
Grav
Gremlins, Inc.
Hammer And Sickle
Hellblade: Senua's Sacrifice
Homeworld: Deserts of Kharak
Kill to Collect
Kingdom Come: Deliverance
Life is Feudal: Your Own
Medieval Engineers
Niffelheim
<span class="bold">Orwell</span>
Paradise Lost: First Contact
Pillars of Eternity II: Deadfire
Planetary Annihilation: TITANS
Postal 2 Paradise Lost
Project Resurgence
Reflections
Savage Lands
Scorn
Senran Kagura Shinovi Versus
<span class="bold">Shadow Hand</span>
Shrouded in Sanity
Songbringer
Space Engineers
Stardrive
Stardrive 2
State of Decay Year-One Survival Edition
Stories Untold (Feb 27 2017)
Stranded Deep
Sully: A Very Serious RPG
Sundered
The Elder Scrolls IV: Oblivion - GOTY Edition
The Fall Of Lazarus
The Mandate
The Political Machine 2016
The Unreleased
Thimbleweed Park
Town of Light
Upwards, Lonely Robot
Wasteland 3
Way Of The Samurai 3
Zeno Clash

Unless you refuse to consider it released until the Linux version is added, this one was released yesterday.

Fixed. Strangely, on Russian GOG there is news about release of Holy Potatoes! A Weapon Shop?! yesterday, not Space.

Ahem. ;)

Thank you, added game to the list. :)

Both were released. They're listed together as a series on the game pages.

Still holding out hope for Fallout 3!

Given the technical difficulties post before launch that was followed by radio silence, I think you can safely remove that one from the list.

The developper of Secret legend seems to tell his game is on his way to gog.
Twitter account.

How is that a confirmation of the game coming to GOG?

Well for me he clearly implies that he want his game released on gog by "No official announcements on storefronts yet" but maybe i'm wrong.

And actually no really official annoucement for any game till there's no gog news.

Maybe it's just me, but in that tweet I only see the dev politely answering that he has nothing to say on that matter. And even if you're right and he was really hinting something, he could very well be referring to Humble and not GOG...

PS: The game looks rad though, I'd love to see it here. :)

Anyone know if there is a timeframe when we see some significant update for galaxy?

This has been the only answer we've gotten so far:

It may be better, if never? With it appearance, it became need to work multiplayer in some games. :(

The Japanese are experts in tentacles ^_^