Include me - this is one of the last places I'm still active on GOG, and I'd like to keep things going.

In 2014, I finished 20 games. In 2015, I finished 32 games - pretty good, for me. Edged slightly up again in 2016 with 38 games, which is especially solid (again, for me) considering how busy I was for much of the year with rehearsals and performances.

And now 2017 awaits.

1. Syberia 2 (January 4)
2. Price (January 5)
3. Off-Peak (January 13)
4. Grim Legends 2: Song of the Dark Swan (February 9)
5. Alchemy Mysteries: Prague Legends (March 10)
6. Emily is Away (March 23)
7. 1 Moment of Time: Silentville (March 24)
8. Demon Hunter: Chronicles from Beyond (March 31)
9. <span class="bold">The NADI Project</span> (April 2)
10. Always Remember Me (April 7)
11. Mind Snares: Alice's Journey (April 21)
12. Cognition: An Erica Reed Thriller (April 30)
13. Demon Hunter 2: New Chapter (April 30)
14. Lost Lands: A Hidden Object Adventure (May 21)
15. Space Legends: At the End of the Universe (May 27)
16. Resident Evil 7 / Biohazard 7 Teaser: Beginning Hour (May 29)
17. Infected: The Twin Vaccine (June 1)
18. Midnight Mysteries: Salem Witch Trials (June 2)
19. Grim Legends 3: Dark City (June 4)
20. Theatre Of The Absurd (June 9)
21. Dracula's Legacy (June 10)
22. Enigmatis 3: The Shadow of Karkhala (June 16)
23. Hero of the Kingdom (June 16)

January:
Lego Star Wars: The Force Awakens
D&D: Chronicles of Mystara
Gauntlet Slayer Edition
Borderlands 2
Forge Quest
The Sea Will Claim Everything

Include me

PC
Resident Evil: Revelations
Grim Dawn
Mirror's Edge: Catalyst
Brothers: A Tale of Two Sons
POSTAL Redux
Deus Ex: Invisible War
Syberia
Syberia 2
Metal Slug
Metal Slug X
POSTAL 2
Dead or Alive 5 Last Round
Devil May Cry 4
Kane & Lynch: Dead Men
POSTAL 2: Paradise Lost
Trine: Enchanted Edition

Xbox One
Tales from the Borderlands
Killer is Dead
Shadows of the Damned
Halo 3*
Forza Horizon 2 - Storm Island
Ryse: Son of Rome
Halo 3: ODST*
Deus Ex: Mankind Divided
Deus Ex: Human Revolution
Resident Evil 4*
Forza Horizon 3
Resident Evil Zero
Castle Crashers*
Kane & Lynch 2: Dog Days
Far Cry 3
Soul Calibur 2
Trine 2
The Evil Within
Ugly Americans: Apocalypsegeddon

Playstation 4
The Last Guardian

Xbox 360
Resident Evil: Code Veronica X
Devil May Cry
Devil May Cry 2
Devil May Cry 3

* Not my first playthrough

Games finished in 2016
Games finished in 2015

21/01 - Tropico 4
12/02 - Shadowrun Hong Kong - Extended Edition
05/05 - Fallout: New Vegas
27/08 - Deus Ex: Human Revolution - Missing Link
26/12 - Technobabylon
26/12 - Witcher 3: Wild Hunt

Previous years:

Games finished in 2009
Games finished in 2010
Games finished in 2012. Incomplete
Games finished in 2013
Games finished in 2014
Games finished in 2015
Games finished in 2016

Include Me :D

Game's Current Playing:
Dragon Quest VII: Journey of the Curse King

List of Games Completed:
Thief Gold - 06/01
Thief 2: The Metal age - 14/01
Tales of Monkey Island - 28/01
The Witcher - 02/02
Psychonauts - 06/02
Deja Vu - 11/02
Age of Empires: Mythologies - 11/02
Sam and Max: The Devils Playhouse - 11/02
Burnout Paradise - 16/02
Maniac Mansion - 20/02
Crysis - 07/03
Full Throttle - 07/02
Final Fantasy Tactics: War of the Lions - 12/02
Bladerunner (1997) - 17/03
Portal - 20/03
The Curse of Monkey Island - 22/03
World of Goo - 19/04
Pikmin - 19/04
A Boy and his Blob - 25/04
Persona 5 - 06/05
Railroad Tycoon 3 - 03/06
Machinarium - 13/06
Jade Empire - 15/06
Afrika - 18/06
Space Channel 5 - 23/06
Trine - 25/06
Half Life - 26/06
Fable - 30/06
Zoombini's - 30/06
Super Mario Bros 2 - 03/07
NiGHTS into Dreams - 03/07
Soul Calibur 2 - 08/07
Alone in the Dark - 08/07
Aliens versus Predator Classic 2000 - 14/07
Super Mario Bros 3 - 15/07
Kingdom Hearts: Birth by Sleep - 20/07
Half Life 2 - 22/07
Silent Hill - 02/08
Mighty Flip Champs - 02/08
Trauma Centre: Under the Knife - 24/09
Layton's Mystery Journey: Katrielle and the Millionaire's Conspiracy - 10/10
Ratchet and Clank: Size Matters - 13/11
Metal Gear Solid: Portable Ops - 27/11
Peggle: Deluxe - 19/12
Finding Paradise - 19/12
Auditorium - 19/12
Tactics Ogre: Let us Cling Together - 20/12
Limbo - 22/12
Defense Grid: The Awakening - 22/12
Crayon Physics: Deluxe - 23/12
Silent Shock 2 - 30/12

MysterD's Completed PC Games List for 2017:
Base-Games, DLC's, Expansions, Etc. (sorted by game + mostly from newest completion to oldest):

10. Dex -> Classic Difficulty = 11-05-2017.
09. Quantum Break (Steam Version) -> Normal Difficulty = 10-23-2017.
08. Mirror's Edge: Catalyst -> 08-03-2017.
07. Dreamfall Chapters:
--> Book 1 = 07-02-2017.
--> Book 2 = 07-08-2017.
--> Book 3 = 07-13-2017.
06. Batman: A Telltale Series:
--> Episode 1 = 07-02-2017.
--> Episodes 2+3 = 07-28-2017.
--> Episodes 4+5 = 07-29-2017.
05. Mortal Kombat XL
--> Story Mode at Medium = 11-12-2017.
--> Tower Mode at Medium = 5-29 as Triborg.
04. The Wolf Among Us - Season 1:
--> Episodes 1+2 = 03-25-2017.
--> Episodes 3+4+5 = 03-26-2017.
03. Homefront: The Revolution -> Base Game's Campaign = 03-19-2017.
02. Rise of the Tomb Raider:
--> Baba Yaga: The Temple of the Witch = 02-11-2017.
--> Base-Game's Campaign = 02-19-2017.
01. Deus Ex: Mankind Divided
-> Base-Game's Campaign - Give Me A Challenge Difficulty = 01-16-2017.
-> Desperate Measures DLC - Give Me A Challenge Difficulty = 08-12-2017.
-> System Rift DLC - Give Me A Challenge Difficulty = 08-13-2017.
-> A Criminal Past DLC - Give Me A Challenge Difficulty = 08-16-2017.

Past-Year Lists of MysterD's Finished PC Games -> From Lastest Years To Oldest:
2016.
2015.
2014
2013
2012
2011
2010
2009

First game of 2017: Negligee

A VN about you (a lesbian young woman) managing a lingerie shop. Of course you'll have to recruit a new female staff and thus, romance will happen (or not). Very short VN, took me about 1h30 for my first run, but I'm a fast reader.

Art is not bad at all and if you grab the (free) nude patch, it really adds some... "spice" to the game!

I'm not sure if I will ever do a second run for unlocking the other successes and artworks, but for the discount price i paid it during the steam sales, it was worth it.

So far in 2017: https://www.gog.com/forum/general/games_finished_in_2017/post15

Transformers Devastation (Optimus Commander)
Vanquish
Freedom Wars (platinum)
Megatagmension Blanc + Neptune vs. Zombies (PLatinum)
Final Fantasy 15 (platinum)
Ninja Gaiden (NES)
Hyperdimension Neptunia U Action Unleashed (platinum)
Final Fantasy Mystic Quest
Senran Kagura: Shinovi Versus (platinum)
EVO The Search For Eden
Tomb Raider (2013)
Demon Gaze (platinum)
Fire Emblem: The Sacred Stones (Ephriam)
Blazblue Calamity Trigger (story)
Lufia: The Legend Returns
Touhou Scarlet Curiosity
Phoenix Wright Ace Attorney: Spirit of Justice
Super Mario Sunshine (120 shines)
Bastion
Bionic Commando Rearmed
3d Shinobi 3
3d Gunstar Heroes
Ninja Gaiden 2: The Dark Sword of Chaos
Ragnarok Odyssey Ace
Senran Kagura Burst
Ratchet and Clank Into the Nexus
Superdimension Neptunia vs. Sega Hard Girls
Dragon Quest Heroes The World Tree's Woe and the Blight Below
Live a Live
Utawarerumono The Mask of Deception (platinum)
Terranigma
Utawarerumono The Mask of Truth
Magical Drop 3 (challenge, journey mode)
Star Fox
Star Fox 2
Culdcept Revolt
Conrta
Super C
Conrta Force
Gradius (nes)
Kickle Cubicle
Super Adventure Island
Contra Rebirth
Kirby Planet Robobot
Super Mario World
Mega Man X
Ghosts n Goblins (arcade)
King of the Dragons
Knights of the Round
Eco Fighters
Ghouls n Ghosts (arcade)
Mercs (arcade)
Commando (arcade)
Final Fantasy 15: A King's Tale
1943 (arcade)
1943 Kai (arcade)
Bust a move 4 (arcade puzzle, story puzzle, vs. com)
Bust a move Pocket (puzzle, vs. com)
BlazblueContinuum Shift Extend (arcade, story)
Super ghouls n ghosts

Include me

2016's post.
Bold games are from here on GOG, italics are games I've purchased this year., asterisks are games I've beaten in the past, and a dash is a game that's not part of my collection (borrowed, played at a convention, etc.).
Updated at the end of each month.

PC:
A Robot Named Fight! (5x)
Aliens Go Home Run
Batman: Arkham City GOTY
Blake Stone: Planet Strike
Bleed
Bleed 2 (3x)
CrossCells
Cuphead
Danmaku Unlimited 2
Dark Arcana: The Carnival
Darksiders: Warmastered Edition
Dear Esther: Landmark Edition (2x)
The Dishwasher: Vampire Smile
Doodle God
Dusty Revenge
Ellipsis
Eponymous
Flywrench
Furi
Grow Home
Halloween Forever
Hidden Folk
I Can't Believe It's Not Gambling
Jotun
The Last Blade
Legacy of the Elder Star
Lego Batman 3: Beyond Gotham
MegaTagmension Blanc + Neptune Vs. Zombies
Mighty No. 9
Monolith
Naruto: Ultimate Ninja STORM
Neon Drive
Outland
Painkiller: Recurring Evil
Poi
Potatoman Seeks The Troof!
Pretty Girls Panic!
Princess KAGUYA
Refunct
Rex-Another Island
Rez Infinite
Shantae: Half Genie Hero
Shantae: Half Genie Hero: Pirate Queen's Quest
Sonic Forces
SPACEPLAN
Submerged
Tadpole Treble
Thumper
TIMEframe
UNDER NIGHT IN-BIRTH Exe:Late (x2)
*VVVVVV (x2)
What Remains of Edith Finch

NES:
1943: The Battle of Midway
-Battletoads and Double Dragon
Castlevania
*Chip and Dale: Rescue Rangers (x2)
-Chip and Dale: Rescue Rangers 2
Double Dragon 3: The Sacred Stones
-Escape from Atlantis (x2)
-Felix the Cat
Fester's Quest
Ghosts n' Goblins
-Guerilla War
*Kirby's Adventure
*The Legend of Zelda
*Monster Party
Ninja Gaiden 2: Dark Sword of Chaos
-*Panic Restaurant
The Rocketeer
-Splatterhouse: Wanpaku Grafitti
-Super Mario Bros ROMhack (Bowser's Jumping Challenge)
-Super Mario Bros ROMhack (Toadette's Christmas Adventure)
-Super Mario Bros ROMhack (Tower R E)
Xenophobe
Wrecking Crew

SNES:
*-The Addams Family
-The Great Circus Mystery
The Jungle Book
The Legend of Zelda: A Link to the Past (Randomizer) (a couple times)
*The Legend of Zelda: A Link to the Past (vanilla)
*Pieces
Super Ghouls N' Ghosts
*Super Mario All-Stars: Super Mario Bros.
Super R-Type
*Teenage Mutant Ninja Turtles IV: Turtles in Time

Game Boy:
-Bust A Move 2 Arcade Edition (a few times)
-Bust A Move 3 (a few times)
Castlevania Legends
-Felix the Cat
*Kirby's Dream Land (x5)
Game and Watch Gallery 3
*Super Mario Land
-Tetris Blast

Game Boy Advance:
*Castlevania: Circle of the Moon (x2)
-Castlevania: Harmony of Dissonance (x2)
-Kirby: Nightmare in Dreamland
Monsters, Inc.
*WarioWare, Inc: Mega Microgame$

Nintendo 3DS:
Super Mario 3D Land

Playstation 3:
Ratchet and Clank HD Collection: Ratchet and Clank HD

Playstation 4:
A King's Tale: Final Fantasy XV
Ape Escape 2
Senran Kagura: Peach Beach Splash
Touhou: Scarlet Curiosity

Master System:
-Transbot

Genesis:
-*Altered Beast
-The Addams Family
Castlevania Bloodlines
*DecapAttack
-Golden Axe 2
Revenge of Shinobi
*Michael Jackson's Moonwalker
*Sonic the Hedgehog
*-Splatterhouse 2
*Streets of Rage (x2)
*Streets of Rage 2
-Teenage Mutant Ninja Turtles: Hyperstone Heist
Toejam and Earl

Game Gear:
Sonic: Triple Trouble

TG-16:
-Splatterhouse

Arcade:
-Burning Fight
-Sengoku

Include me
2014 list
2015 list
2016 list

Hexcells Infinite, Steam, 1/2
SquareCells, Steam, 1/3
Crystal Mines, PSP, 2/25
Axiom Verge, PS4, 2/26
Chip's Challenge, Steam, 4/5
Bloodborne, PS4, 4/9
Dragon Quest VII: Fragments of the Forgotten Past, 3DS, 4/10
PaRappa the Rapper 2, PS2 (PS4), 4/17
Night In the Woods, PS4, 4/17
Persona 2: Innocent Sin, PSP (Vita), 4/24
Out There Somewhere, Steam, 4/24
CrossCells, Steam, 5/27
Chuck's Challenge 3D, Steam, 6/21
Dark Souls II: Scholar of the First Sin, PS4, 6/30
Kindergarten, Steam, 7/8
Inside, GOG, 9/21
Virginia, GOG, 9/23
What Remains of Edith Finch, Steam, 9/25
Torment: Tides of Numenera, Steam, 10/05
Shin Megami Tensei: Devil Survivor Overclocked, 3DS, 10/21
Boulder Dash EX, GBA, 10//22
Summon Night: Swordcraft Story, GBA, 10/28

Games Finished in 2013
Games Finished in 2014
Games Finished in 2015
Games Finished in 2016

BioShock [Remastered - First time on PC]
Little Inferno
Pony Island
Superhot
Life is Strange - Complete Season
Portal Stories: Mel
World of Goo
Her Story
The Beginner's Guide
Dishonored
Saints Row: The Third
Jurassic Park: The Game
Star Wars Battlefront (2015)
Lego Jurassic World

The Shivah

Incredibly short and easy with very limited interactivity. One can easily complete it within an hour while examining everything. The story isn't half bad, but feels rushed and the characters are mostly underdeveloped.

Wadjet Eye had the chance to expand on the original, but chose to upgrade nothing but the graphics and sound. The achievements seem quite pointless for such a short game.
Not worth the money if you ask me.

5/10

07/22: The Witcher 3: Wild Hunt

Include me.

1. Pharaoh
2. Cleopatra
3. Legend of Grimrock
4. Sokobond
5. The Settlers II - 10th Anniversary Edition
6. Commandos - Beyond The Call Of Duty