Just as the title says, list all the games you played this year. I'll list mine in below and 2014 in comparison. 

Games Played 2015

Mario Kart 8 (Wii U) 9.2/10 

1/12/15-1/12/15 (1 day) 

The Wonderful 101 (Wii U) 8.0/10 

1/12/15-1/16/15 (5 days)

*Saints Row: Gat Out of Hell (Xbox One) 9.2/10

1/22/15-1/30/15 (9 days)

*Saints Row IV: Re-Elected (Xbox One) 9.6/10

1/30/15-2/14/15 (16 days) 

*Sleeping Dogs: Definitive Edition (Xbox One) 9.3/10

2/26/15-3/13/15 (16 days)

*Ori and the Blind Forest (Xbox One) 9.5/10

3/14/15-3/17/15 (4 days)

Final Fantasy X HD Remaster (PS3) 8.4/10

5/15/15-5/25/15 (11 days) 

Final Fantasy X-2 HD Remaster (PS3) 8.5/10

5/30/15-6/6/15 (8 days) 

*Tales of Xillia 2 (PS3) 9.4/10

6/8/15-6/28/15 (21 days)

Ratchet & Clank: Into the Nexus (PS3) 7.8/10

6/30/15-6/30/15 (1 day)

*Persona 3 FES (PS2) 9.2/10

7/1/15-7/16/15 (16 days)

*Super Mario Galaxy 2 (Wii) 9.8/10

7/20/15-7/26/15 (7 days)

*Forza Horizon (Xbox 360) 9.0/10

8/6/15-8/11/15 (6 days)

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

Games Played 2014

~*Tearaway (PS Vita) 9.3/10

WWE 2K 14 (Xbox 360) 7.0/10

1/17/14-1-18/14 (2 days)

*The Legend of Zelda: A Link Between Worlds (3DS) 9.2/10

2/8/14-3/3/14 (25 days)

Forza Motorsport 5 (Xbox One) 7.5/10

3/4/14-3/7/14 (4 days)

Ryse: Son of Rome (Xbox One) 8.2/10

3/7/14-3/8/14 (2 days)

LEGO Marvel Super Heroes (Xbox One) 7.5/10

3/9/14-3/12/14 (4 days)

*South Park: The Stick of Truth (Xbox 360) 9.4/10

3/12/14-3/14/14 (3 days)

Yoshi's New Island (3DS) 8.5/10

3/21/14-3/23/14 (3 days)

*Rayman Legends (Xbox One) 9.6/10

4/5/14-4/11/14 (7 days)

Fable Anniversary (Xbox 360) 8.0/10

4/18/14-4/26/14 (9 days)

*Child of Light (Xbox One) 9.0/10

5/2/14-5/4/14 (3 days)

Fable 2 (Xbox 360) 8.4/10

5/5/14-5/7/14 (3 days)

Mario Golf: World Tour (3DS) 8.0/10 

5/8/14-5/9/14 (2 days) 

*Kirby: Triple Deluxe (3DS) 9.2/10

5/9/14-5/14/14 (6 days)

*Pokemon X (3DS) 9.9/10

5/16/14-5/25/14 (10 days)

Crackdown (Xbox 360) 7.0/10

5/25/14-5/26/14 (2 days)

Donkey Kong Country: Tropical Freeze (Wii U) 8.9/10

5/30/14-6/2/14 (4 days)

*Blue Dragon (Xbox 360) 9.0/10

6/3/14-6/12/14 (10 days)

God of War (PS Vita) 8.9/10

6/12/14-6/14/14 (3 days)

*God of War II (PS Vita) 9.3/10

6/15/14-6/17/14 (3 days)

*God of War III (PS3) 9.5/10

6/18/14-6/19/14 (2 days)

God of War: Ascension (PS3) 8.0/10

6/20/14-6/26/14 (7 days)

Knack (PS4) 6.9/10

6/27/14-7/3/14 (7 days)

*Infamous: Second Son (PS4) 9.0/10

7/3/14-7/5/14 (3 days)

Catherine (Xbox 360) 8.0/10

7/24/14-7/25/14 (2 days)

Sly Cooper and the Thievius Raccoonus (PS Vita) 8.8/10

8/8/14-8/11/14 (4 days)

Trials Fusion (Xbox One) 8.0/10

8/29/14-8/30/14 (2 days)

*Infamous: First Light (PS4) 8.6/10

9/1/14-9/2/14 (2 days)

*Sly 2: Band of Thieves (PS Vita) 9.1/10

9/3/14-9/7/14 (5 days)

Sly 3: Honor Among Thieves (PS Vita) 8.4/10

9/7/14-9/13/14 (7 days)

Naruto Shippuden: Ultimate Ninja Storm Revolution (Xbox 360) 8.3/10

9/17/14-9/21/14 (5 days) 

Ys: Memories of Celceta (PS Vita) 8.0/10

9/22/14-9/27/14 (6 days)

*Forza Horizon 2 (Xbox One) 9.4/10

9/30/14-10/5/14 (6 days)

*Middle-earth: Shadow of Mordor (Xbox One) 8.5/10

10/19/14-10/22/14 (4 days)

*Sunset Overdrive (Xbox One) 9.5/10

10/28/14 -11/2/14 (6 days)

Forza Motorsport 5 (Xbox One) 8.7/10

11/14/14-11/17/14 (4 days)

*Pokemon Omega Ruby (3DS) 9.5/10

11/22/14-12/2/14 (11 days)

*Pokemon Alpha Sapphire (3DS) 9.5/10

12/2/14-12/6/14 (5 days)

*Persona 4 Golden (PS Vita) 
12/11/14-12/27/14 (17 days) *********** Best game played in 2014

**** Disclaimer, ignore arbitrary numbers and all these games are beaten. Pretty intersting to see how much I've played from this year compared to last years. I do expect to play at least one more game (Tales of Zesteria) before the end of the year though. I hope to have a better year in 2016.

******Apologies for the overall sloppiness, it looked MUCH better in preview

Post your lists peeps, and discuss. 

PS3:
Final Fantasy X HD - 10/10
Final Fantasy X-2 HD - 7.5/10
Assassin's Creed III - 8.5/10
Kingdom Hearts II HD - 9.5/10
Ratchet & Clank: A Crack in Time - 8.5/10
Metal Gear Solid 4: Guns of the Patriots - 8.5/10
Metal Gear Rising: Revengeance - 7.5/10
Lost Dimension - 7.5/10
Tales of Graces - 6.5/10
XCOM: Enemy Unknown - 8.5/10
Kingdom Hearts: Birth by Sleep - 9/10
Ratchet & Clank: All 4 One - 8/10
Ratchet & Clank: Full Frontal Assault - 7.5/10

PS4:
The Last of Us Remastered - 10/10
Destiny - 8/10
Diablo III - 8/10
Uncharted: Drake's Fortune Remastered - 9/10
Uncharted 2: Among Thieves - 10/10
Uncharted 3: Drake's Deception - 9.5/10
The Order: 1886 - 8.5/10
Murdered: Soul Suspect - 8.5/10
Life is Strange: Episode 1 - 7.5/10

3DS:
Mario's Picross - 8.5/10
Picross 3D - 8/10

PC:
Sid Meier's Civilization V - 9/10
L.A. Noire - 8.5/10

3DS
Shin Megami Tensei IV - 9.0/10
Majora's Mask 3D - 9.0/10
Triforce Heroes - 7.0/10
Chrono Trigger DS - 8.0/10

Wii U
Super Mario World (VC) - 9.5/10
Xenoblade Chronicles X - 9.0/10
Hyrule Warriors - 8.0/10
Mario Kart 8 - 7.0/10
Super Smash Bros for Wii U - 6.0/10

As far as I remember.

PS4
The Last of Us Remastered - 10/10
The Order: 1886 - 6.5/10
FIFA 15 - 7.5/10
inFAMOUS: First Light - 8/10
The Wolf Among Us - 8.5/10
Call of Duty: Advanced Warfare - 7/10
Mortal Kombat X - 7.5/10
Batman: Arkham Knight - 9/10
NBA 2K15 - 7/10
Middle-Earth: Shadow of Mordor - 7.5/10
Yu-Gi-Oh! Legacy of the Duelist - 8/10
The Witcher 3: Wild Hunt - 10/10
Lara Croft and the Temple of Osiris - 7/10
Sound Shapes - 6/10
Rocket League - 8.5/10
Destiny: The Taken King - 9/10
NHL 16 - 7/10
NBA 2K16 - 8.5/10
Tales from the Borderlands - 9/10
Game of Thrones - 7.5/10
Uncharted: Drake's Fortune Remastered - 8/10

Hmm let's see...

-PC-
Team Fortress 2
Age of Empires II: HD
Victoria 2
Europa Universalis IV
Undertale
Sonic Adventure
Sonic Adventure 2
Minecraft
Doom II: Hell on Earth
The Elder Scrolls V: Skyrim

-PS4-
inFamous: Second Son
Bloodborne
Metal Gear Solid V: The Phantom Pain

-PS3-
Tales of Symphonia HD
Uncharted
Uncharted 2: Among Thieves
Uncharted 3: Drake's Deception
Dark Souls

-PS1-
Final Fantasy IX
Mega Man X4
Mega Man 8
Crash Bandicoot 2: Cortex Strikes Back

-SNES-
Mega Man 7
Mega Man X2
Mega Man X3
Earthbound

-Gameboy-
Mega Man V

-Gamecube-
Super Smash Bros. Melee
Resident Evil Remake
Animal Crossing

-N64
The Legend of Zelda: Ocarina of Time

-DS-
Phoenix Wright: Ace Attorney
Phoenix Wright: Ace Attorney - Justice for All
Phoenix Wright: Ace Attorney -Trials and Tribunals
Apollo Justice: Ace Attorney

-3DS-
Professor Layton vs. Phoenix Wright: Ace Attorney
The Legend of Zelda: A Link Between Worlds

-Wii U-
Super Smash Bros. 4
Splatoon
Mario Kart 8
NES Remix
Yoshi Wooly World
Xenoblade Chronicles X

-NES-
Mother 1
Mega Man
Mega Man 2
Mega Man 3
Mega Man 4
Mega Man 5
Mega Man 6

-Xbox One-
Forza Horizon 2

That's about all I remember.

Nice lists guys! Nice amount of variety as well.

I wish I had more time to spend for gaming. I don't know how people manage to spend time to play games while in school, family/bf/gf, job, etc. Especially undertaking those JRPGs...

This is going to take me a bit. I'll separate played and beaten:

Beaten:

PS4:
Bloodborne
Final Fantasy Type 0 HD

Wii:

3DS:
Bravely Default
Senran Kagura Burst

Vita:

Wii U:
Super Mario 3D World

Played:

PS4:
J-Stars Victory+
Mobile Suit Gundam Extreme Vs Force

Wii:
Xenoblade
The Legend of Zelda: Twilight Princess
Wii Sports Resort

3DS:
Shin Megami Tensei IV

WiiU:
Super Smash Bros.
Bayonetta 2
Wind Waker HD

I'm going to fill out shortly.

Hmm, probably missing quite a few but from what I can think of:

NDS:
- Luminous Arc
- Advance Wars
- DQH Rocket Slime
- The World Ends With You
- Rune Factory 3
- Ace Attorney 1-3
- Etrian Odyssey 2

3DS:
- FE Awakening
- Theatrhythm + Curtain Call
- Etrian Odyssey Untold
- Fantasy Life
- Rune Factory 4
- Project Mirai
- Pokemon AS
- Smash 3DS
- Pokemon Picross
- Bravely Default
- plus a LOT of Demos

Vita
Tales of Hearts R
Project Diva f + 2nd

GCN
- Tales of Symphonia
- Smash Melee
- Path of Radiance

Wii
- Smash Brawl
- Skyward Sword

Wii U
- Splatoon
- Smash Wii U
- Super Mario Maker
- Yoshi's Wooly World
- Kirby's Rainbow Curse
- The Wind Waker HD
- Mario Kart 8
- Hyrule Warriors

WiiU

1) Bayonetta 2
2) Super Mario 3D World

PS4

1) Saints Row 4
2) Saints Row Gat out of Hell
3) Sleeping Dogs Definitive Edition
4) Lords of the Fallen
5) The Order 1886
6) Bloodborne
7) Apatheon
8) Ducktales remastered
9) GTAV
10) transistor
11) ACU
12) Injustice
13) DC
14) Escape Plan
15) SSF4
16) MGS:GZ
17) Hohokum
18) Batman:AK
19) Planetside 2
20) Rocket League
21) Until Dawn
22) LC:ToO
23) DMC4:SE
24) Mad Max
25) Tearaway Unfolded
26) Journey
27) Helldivers
28) Dying Light
29) Witcher 3
30) SW-BF
31) Uncharted
32) Uncharted 2
33) Uncharted 3

Counting only games I've played a sizable portion of (or beaten). So far..

Wii U

Splatoon
Mario Kart 8
Super Mario Maker
Super Mario 3D World
Super Smash Bros. for Wii U
Yoshi's Woolly World
Donkey Kong Country: Tropical Freeze
Guacamelee! STCE
Zelda: Ocarina of Time (VC)

PS1

Metal Gear Solid