***IMPORTANT*** I will not be continuing this thread in 2021. The fact that GOG is announcing more games in advance, and the fact that twitter (for a while now) has put a limit on the number of pages you can open at the same time, means that it takes too much of my time to update this thread. I will continue the thread until December 31 2020. After that date I will contribute to the thread "Games that are unofficially confirmed for release in the future part 2" only for the games I'm personally looking forward to. If someone wants to take up the thread or part of it, feel free. I prefer to give a heads-up.

Every game and date in this thread are tentative.
Game development is an ever changing scape, please don't take anything you read here as absolute certainties. I don't intend for my original posts to have the current hourly up-to-date information, but I will do my best to update them in a timely fashion (daily or at least once a week). I'm always open to rectifications, corrections (especially typos) and suggestions.

Previous threads: 2017 - 2018 - 2019

2021 -Giving you an overview of what and when things MIGHT be coming here-

January 26 2021
Cyber Shadow -Unofficial date from the forum-
ENCODYA -Unofficial date from the developers' twitter-

January 28 2021
Sword of the Necromancer -Unofficial date from the developers' twitter-

February 11 2021
Little Nightmares II

February 17 2021
Nebuchadnezzar -Unofficial date from the developers twitter-

March 01 2021
Foregone

Last updated: December 31 2020, if there are release date changes in the future, I will not update this thread to reflect the changes. Thank you.

Officially confirmed by GOG games (mostly the upcoming games' list from the front page):

A Juggler's Tale
Against the Storm
Asylum
Becastled
Biomutant
Black Book
Black Skylands (source: GOG)
Body of Evidence
Born Punk
Brassheart
Brave Earth: Prologue
Bright Memory: Infinite
BROK the InvestiGator
Builders of Egypt
Carcassonne - Tiles and Tactics
Cartel Tycoon
Chained Echoes
City of Gangsters
Cold Hearts
Conscript
Cris Tales
Cuphead: The Delicious Last Course DLC
Dark Envoy
Disjunction
Dream Engines: Nomad Cities
Dreamscaper (Source: GOG)
Edge of Eternity
Eldest Souls
Everspace 2
Figment: Creed Valley
Floppy Knights
Gamedec
Genesis Noir
Gestalt: Steam and Cinder
Gloomwood
Good Night, Knight
Graven
Growbot
Guild of Darksteel
Hellish Quart (will go IN DEV)
Hitchhiker - A Mystery Game
Hollow Knight: Silksong
Inkulinati
Knights of the Chalice 2
Mayhem in Single Valley (source: GOG)
Minute of Islands
Mortal Shell
Mutropolis
Myst ("remastered")
Nanotale - Typing Chronicles
Nighthawks
Nongunz: Doppelganger Edition
Overloop
Paradise Lost (source: GOG)
Realms Beyond: Ashes of the Fallen
Recompile
Resort
Rosewater
Saint Kotar
Serial Cleaners
Sherlock Holmes: Chapter One
Siege Survival: Gloria Victis
Snowtopia
STASIS: Bone Totem
Syberia: The World Before
System Shock Reboot
The Darkside Detective: A Fumble in the Dark
The Legend of Heroes: Trails of Cold Steel IV
The Magister
The Riftbreaker
The Tenants
The Way of the Wrath
Trash Sailors
Turnip Boy Commits Tax Evasion
ULTRAKILL
Unbound: Worlds Apart
UnDungeon (source: GOG)
UnMetal
Vampire: The Masquerade - Bloodlines 2
Vesper
We Are the Caretakers (source: GOG)
Whateverland
Winter Ember
X4: Cradle of Humanity DLC
Xenonauts 2
Ys IX: Monstrum Nox
Zoria: Age of Shattering

IN DEV:

Astrox Imperium
ATOM RPG: Trudograd
Baldur's Gate 3
Between the Stars
Breathedge
Caves of Qud
Chernobylite
Danger Scavenger
Dead Age 2
Democracy 4
Drox Operative 2
Empires of the Undergrowth
Encased: A Sci-Fi Post-Apocalyptic RPG
Endzone: A World Apart
Epic Tavern
Exanima
Flotsam
Foundation
FoxTail
Good Company
Gordian Quest
Jupiter Hell
Kynseed
Last Leviathan, The
Legend of Keepers: Career of a Dungeon Master
Low Magic Age
Medieval Dynasty
Minotaur
Mount and Blade II: Bannerlord
Nightmare Reaper
Not For Broadcast
Nova Drift
Odd Realm
Ostriv
Plane Mechanic Simulator
Postal 4: No Regerts
Prodeus
Project Zomboid
Realpolitiks II
Secret Government
Solasta: Crown of the Magister
Songs of Syx
Soul Saga
Space Haven
Stellar Tactics
Stoneshard
Tainted Grail
The Guild 3
The Universim
The Waylanders
UBOAT
Universe Sandbox
Urtuk: The Desolation
Vagrus: The Riven Realms
World of Horror
Wrath: Aeon of Ruin

For me "in dev" is having access to a game to help make it better for release. When it leaves "in dev" is when I'll take it off this list because it released officially.

Unofficially confirmed games: 2020

Since most of the games will come from:
https://www.gog.com/forum/general/games_that_are_unofficially_confirmed_for_release_in_the_future_part_2/
instead of putting the complete link to the source of the information, I will write the number of the post that came from that thread, you'll then need to copy the above link and add what I wrote after "source". There may be two post numbers written after the source, the first number is the original mention of the game and the second number is the latest "informative" post about it. Any information that comes from another source than the above thread will have a direct link provided. This is to be able to fit more titles in one post.

The games are separated by year it was last mentioned with "information" about it. If you feel a game is missing or don't agree with a game being here, tell me why and I might reconsider. People that only give links to information about a game without writing the name and some info won't see it appear here if no one else gives the info.

I would like to thank Andrey82 for giving me permission to keep an unofficially confirmed list of my own and for providing the list in the above thread. If he ever wishes for me to stop providing a list here, I will.

Attentat 1942 -Source:post10665
Biing 3 -Source: post10726
Bonkies -Source: post12011
Brutal Fate -Source: post11507
Chasing Static -Source: post11447
Door Kickers 2: Task Force North -Source: post2952 post10686
Element: Space -Source:post10581
Embracelet -Source: post11958
Empire of Sin -Source: post9920
Kill It With Fire -Source: post11394
Kingdom of Night -Source: post9783 post11932
Lost Ruins -Source: post11559
MechWarrior 5: Mercenaries + the Heroes of the Inner Sphere addon -Source: post7915 post11890
Merchant Prince -Source: post11734
Merchant Prince 2 -Source: post11734
My Time at Sandrock -Source: post11767
Neofeud -Source: post11667
Orwell's Animal Farm -Source: post11953 post12012
Pathfinder: Wrath of the Righteous -Source: post10677
R-type Final 2 -Source: post11749
Rogue Star Rescue -Source: post11300
Saviors of Sapphire Wings and Stranger of Sword City Revisited (bundle) -Source: post11450
Scorn -Source: post4618 post11463
Scrapnaut -Source: post12012
Shadow Man Remastered -Source: post10846
Shores Unknown -Source: post12000
SKYHILL: Black Mist -Source: post11200
Starmancer -Source: post11349
Strangeland -Source: post11951
Svoboda 1945 -Source:post10665
Twin Mirror -Source:post10581
Viscerafest -Source: post11491
Yakuza Empire -Source: post12012
Ziggurat II -Source: post11667 (will release here after it leaves Early Access elsewhere)

Unofficially confirmed games: 2019 - 2018

2019

Beyond a Steel Sky -Source: post10323
Death Coming -Source: post9943
King's Bounty II -Source: post10070
Mittelborg: The City of the Mages -Source: post9615
Papetura -Source: post10067
Sacred Fire -Source: post6417 post10057
Tales of Maj'Eyal: The Lost Land (expansion) -Source: post9644
The Eternal Castle Remastered -Source: post10100 (Thanks WinterSnowfall)
Victory Project -Source: post9977

2018

3 minutes to Midnight -Source: post8027 post8506
Agony -Source: post8240 post8351
Army Men: Sarge's War -Source: post7847
Assassin's Creed 2 -Source: post8039
Assassin's Creed 3 -Source: post8039
Atomic Heart -Source: post8871
Backbone -Source: post8974
Black Geyser: Couriers of Darkness -Source: post8321
Bomber Crew -Source: post7843
Civilization V -Source: post8529 post8951
Coffee Crisis -Source: post8266
Farm Folks -Source: post8506
Fluffy Horde -Source: post8742
Full Metal Furies -Source: post7942
Gravity Circuit -Source: post8529
Gray Dawn -Source: post8289 (little chance we'll see it here, click here for some info on why)
Kingdom: Two Crowns -Source: post9020
MegaSphere -Source: post8913
Red Comrades 2 -Source: post8148
Revenge of the Titans -Source: post8249
Road Redemption -Source: post7803 ( Devs only want to release on Steam at this time at least)
Skyrim -Source: post8039
Stronghold 2 -Source: post8961
Stronghold 3 -Source: post8961
Stronghold Legends -Source: post8961
The Last Night -Source: post7993
The Myst 25th Anniversary Collection -Source: post8156
The New World -Source: post8693
The Unlikely Legend of Rusty Pup -Source: post8871

Unofficially confirmed games: 2017

911 Operator -Source: post6250
Army Men: Air Tactics -Source: post7452
Astroneer -Source: post3280 post6166
Black Annex -Source: post1280 post6166
Carnivores Games -Source: post6151
Codename Panzers: Cold War -Source: post3280 post6166
Constructor HD -Source: post1792 and here
Copper Dreams -Source: post6960
Defender's Quest 2 - Source: post159 post6166
Demons Age -Source: post3280 post6166
Dragon Fin Soup -Source: post3280 post6166
Entymology -Source: post6356 Is that even a game?
Excubitor -Source: post3280 post6166
Forsaken Castle -Source: post6685
Grav -Source: post3280 post6166 (seems abandoned)
Has Been Heroes -Source: post6506
High Hell -Source: post7380
Keen Dreams -Source: post7352
Kill To Collect -Source: post3280 post6166
Life Is Feudal: Your Own -Source: post3280 post6166
Medieval Engineers -Source: post3280 post6166
Paradise Lost: First Contact -Source: post6163
Pathfinder Adventures -Source: post6840
Planetary Annihilation: TITANS -Source: post3280 post6166
Red Comrades Save the Galaxy: Reloaded -Source: post7041
Redeemer -Source: post6227 post6254
Rise & Shine -Source: post7288
Savage Lands -Source: post3280 post6166
Senran Kagura Shinovi Versus -Source: post3280 post6166 (not coming, see why here)
Space Engineers -Source: post3280 post6166
Stardrive -Source: post3280 post6166
Stardrive 2 -Source: post3280 post6166
Stifled -Source: post7452
Stranded Deep -Source: post3895 post6162
Sully: A Very Serious RPG -Source: post3280 post6166
The Franz Kafka Videogame -Source: post6347
The Mandate -Source: post172 post6166 (seems abandoned)
The Neverhood -Source: post699 post6623
The Norwood Suite -Source: post7288
Town Of Light -Source: post3280 post6166
Upwards, Lonely Robot -Source: post3280 post6166
White Day: A Labyrinth Named School - Source: post7341
Wizardry 1-5 -Source: post6695
Worlds Of Magic -Source: post109 post6320 (probably won't come)
Yonder: The Cloud Catcher Chronicles -Source: post7058
Zeno Clash -Source: post3280 post6166

Unofficially confirmed games: 2016 - 2015 - 2014 - 2013

2016

Arakion -Source: post4906
Arcadian Atlas -Source: post2642
BattleTanx -Source: post2904 post4479
Brawl -Source: post4593
Captain Quazar -Source: post2904 post4479
Crush Your Enemies -Source: post4356
Dinocide -Source: post2799
Hammer And Sickle -Source: post3811
Her Majesty's SPIFFING -Source: post5495
Insanely Twisted Shadow Planet -Source: post4553
Jay and Silent Bob: Chronic Blunt Punch -Source: post2740
KeeperRL -Source: post2809
Nightcry -Source: post2892
Project Resurgence -Source: post4279 (studio dissolved, they *might* still do the game, but I'm not following it anymore)
Reflections -Source: post4279
Rhem 1 -Source: post2638
Rhem 4 -Source: post2638
Shrouded In Sanity -Source: post4279
State Of Decay: Year One Survival Edition -Source: post4219 post5107
Subnautica -Source: post3452
The Bunker - Source: post4880
The Fall Of Lazarus -Source: post4577
The Pit -Source: post3280 (Is this the iOS game or the card game? Unsure if I should count it as released or not)
The Political Machine 2016 -Source: post3280

2015

2Dark -Source: post1627
Albert & Otto (Episode 1) -Source: post1985 (Is this game completed? Are they making only poop games now?)
American McGee's Scrapland -Source: post1451
Axiom Verge -Source: post1571
Black Ice -Source: post1222
Call Of Cthulhu: The Wasted Land -Source: post2396 post2399 (Rejected, Unavailable because of licensing problems)
Cogmind -Source: post1771
Decay: The Mare -Source: post1283
First Wonder -Source: post2039
Frontiers -Source: post1704
Garbage Day -Source: 2203
Legends of Dawn -Source: post138 post2268 ( GROOT says: Avoid it!) :P
Luckslinger -Source: post1758
Mugen Souls -Source: post2171
Paradise Never -Source: post1373
Psychonauts 2 -Source: post2377
Seven Dragon Saga -Source: post1399 (Cancelled)
Shakedown Hawaii -Source: post2350
Shallow Space: Insurgency -Source: 1612
Son Of Nor -Source: post1479
Stars Beyond Reach -Source: post2088
Tengami -Source: post1313
They Bleed Pixels -Source: post1684
The Consuming Shadow -Source: post1788 post2075 (Rejected)
Vertiginous Golf -Source: post1513

2014

Children Of Liberty -Source: post262
Gex 2 -Source: post1089
Gex 3 -Source: post1089 1101 (Probably not)
Gold Rush! - Source: post764
Legions Of Ashworld -Source: post32 post684 (Rejected?)
Machines At War -Source: post688 post810 (Rejected)
Manos: The Hand Of Fate -Source: post1059
Mims -Source: post1072
Shiness -Source: post541
Star Command Galaxies -Source: post1139
Ultionus A Tale Of Pretty Revenge -Source: post263 post394
Woolfe: The Red Hood Diaries -Source: post828

2013

Cryamore -Source: post138
Deathfire: Ruins of Nethermore -Source: post172 (Cancelled)
Doorways -Source: post108
Fade To Black -Source: post138
Iron Soul -Source: post30
Planetary Annihilation -Source: post138
Routine -Source: post138
Silver Symbiosis -Source: post66 (abandoned project?)
Spud's Quest -Source: post65
Trial By Magic -Source: post138
Two Guys SpaceVenture -Source: post138
Wreckfest (Next Car Game) -Source: post29

Episodic games / Episodic DLCs we're waiting on:

If I'm missing anything point it out.

Hiveswap -- Act: 3 -4

Latest updates


Calendar

Added Close to the Sun, May 01 2020 -Official date from GOG-
Added Coffee Talk, January 29 2020 -Unofficial date from the developers' twitter-
Added Cyberpunk 2077, April 16 2020
Added The Alliance Alive HD Remastered, January 16 2020
Added The Dark Crystal: Age of Resistance Tactics, February 04 2020
Added The Sinking City, June 27 2020
Added Wasteland 3, May 19 2020

Officially confirmed by GOG

Moved Close to the Sun to the calendar
Moved Coffee Talk to the calendar
Moved Cyberpunk 2077 to the calendar
Moved The Alliance Alive HD Remastered to the calendar
Moved The Dark Crystal: Age of Resistance Tactics to the calendar
Moved The Sinking City to the calendar
Moved Wasteland 3 to the calendar


------------------------------------------------------------------

I've also omitted Planetary Dustoff from the IN DEV list since it's supposed to release December 16 2019.

Please note that this thread won't see any activity from me til January 01 2020 (except if there's errors in the information for the games releasing in January, otherwise I'll correct any other mistake January 01 2020).

I'd like to thank everyone that contribute information in the forum that helps me keep this thread going.

Happy holidays to the GOG community.

Latest updates


Calendar

Added Frostpunk: The Last Autumn (DLC), January 21 2020
Added LUNA: The Shadow Dust, February 13 2020 -Unofficial date from the developers' twitter-
Added Kentucky Route Zero: Act V (Final act), January 28 2020
Added Wizardry: Labyrinth of Lost Souls, January 15 2020

Officially confirmed by GOG

Moved LUNA: The Shadow Dust

Unofficially confirmed games

Removed Niffelheim -Source: post3280, released January 07 2019

Latest updates


Calendar

Added ELDERBORN, January 30 2020 -Unofficial source and date from the forum-
Added The Legend of Heroes: Trails of Cold Steel III, March 23 2020 -Unofficial source and date from the forum-
Added The Pedestrian, January 29 2020

Changed Cyberpunk 2077 release date from April 2020 to September 17 2020 -Unofficial date from the developers' twitter-

Removed The Alliance Alive HD Remastered, released January 16 2020
Removed Wizardry: Labyrinth of Lost Souls, released January 15 2020

Officially confirmed by GOG

Added Cook, Serve, Delicious! 3?! (will go IN DEV January 29 2020)

Unofficially confirmed games

Added Born Punk -Source: post10442 post10558

The game has a page, but no announcement as of yet:
https://www.gog.com/game/the_legend_of_heroes_trails_of_cold_steel_iii
The release date has also been updated on the game's page.

Latest updates


Calendar

Added The Coma 2: Vicious Sisters, January 28 2020
Added Wasteland Remastered, February 25 2020 -Unofficial date from the forum-

Removed Frostpunk: The Last Autumn (DLC), released January 21 2020

Officially confirmed by GOG

Added Brave Earth: Prologue
Added Broken Lines
Added Dead Cells - The Bad Seed DLC

Unofficially confirmed games

Added Streets of Rage 4 -Source: post10568

Moved Brave Earth: Prologue -Source: post10005 to the officially confirmed by GOG list
Moved Broken Lines -Source: post10309 post10527 to the officially confirmed by GOG list

Changed the name of the game "Once Upon a Coma" to "Neversong" ( Source)

Removed Armored Brigade -Source: post10428, released January 22 2020


-------------------------------------------------------------------

Thank you.

Is confirmed by its developer that it is coming to GOG, they have just ran into some sort of issue. I asked for an update there just now, also asked about Pipe Dreams.

https://steamcommunity.com/app/1011190/discussions/0/1745643665630933215/