There is only one problem with your statement...

...and that is that you only beat it now, and not much earlier it's the second best game this gen as far as I can see.

So far just one game.

Uncharted Lost Legacy

This ties the number of games I beat in 2018: Journey (PS4).

Games I've finished in 2019:

Kingdom Hearts (PS4)

Kingdom Hearts Chain of Memories (PS4)

Kingdom Hearts 2
Kingdom Hearts Birth by Sleep
Kingdom Hearts 3D: Dream Drop Distance
Kingdom Hearts 0.2
Kingdom Hearts 3

Currently working on:

WoW Classic

Games I'm still playing despite being done

Crusader Kings 2 (impossible to beat)


Started but not actively playing:

None

In Queue:

Many many games... will probably start with -
Bulletstorm
The Last of Us
Yakuza Kiwami

2019 was a peak year for me in gaming and my true return to form ever since i started gaming less an less after 2013! Its only matched by 2010 when i had the PS3 and got really addicted to playing for hours almost every day! Fun times.

The games i've finished this year are:

Rise of The Tomb Raider
Spyro The Dragon
Spyro 2: Ripto's Rage!
Spyro 3: Year of The Dragon
God of War
inFAMOUS Second Son
The Order 1886
Resident Evil 7
Trine 3: The Artifacts of Power
Uncharted: Lost Legacy
Crash Bandicoot 3: Warped

And now in the process of playing and finishing Detroit: Become Human.

6 weeks on from my last update - I've cleared a few short games in that time: Hellblade, Gears 5, Turok 2, Luigi's Mansion 3, Katana Zero and Gorogoa. I'm currently playing Civilization VI, which I picked up in the Switch sales, and will likely go back on Mario Maker 2 when the update drops. Now I think about it I also bought and finished the Sega Ages version of Sonic the Hedgehog, so that goes in the 'Finished' pile.

I'm hoping to get through a few more short games before I make my last purchases of 2019 later this month: Pokemon Shield and Dragon Quest XI. I might manage to finish Shield before the end of the year, but I expect DQXI will take me into 2020. I definitely won't have cleared my backlog by then! The Messenger has been added to my backlog since my last update.

Finished:
- Gris
- Blossom Tales
- Hyper Light Drifter
- Banner Saga 1 
- Wargroove 
- Pokemon Let's Go Eevee
- Donkey Kong Country: Tropical Freeze
- Banner Saga 2
- Tales of Vesperia: Definitive Edition
- Banner Saga 3
- Quarantine Circular
- Reigns: Game of Thrones
- Boxboy and Boxgirl!
- Final Fantasy XII: The Zodiac Age
- Super Mario Maker 2
- Marvel Ultimate Alliance 3
- Fire Emblem: Three Houses (Golden Deer, 75 hours; Black Eagles, 45 hours)
- Astral Chain 
- The Legend of Zelda: Link's Awakening 
- Gears 5
- Turok 2: Seeds of Evil
- Hellblade: Senua's Sacrifice
- Luigi's Mansion 3
- Katana Zero
- Gorogoa
- Sonic the Hedgehog (Sega Ages)

Playing:
- Civilization VI

Stalled:
- Dark Souls Remastered (25 hours) I hit Ornstein and Smough.
- The Legend of Zelda: Breath of the Wild Master Mode (20 hours)
- Super Smash Bros Ultimate (up to 60 hours but no further in World of Light, 7 hours World of Light, Classic mode completed with all characters) 

Backlog:
- Golf Story
- Undertale
- Sushi Striker
- Final Fantasy IX
- Final Fantasy X/X-2 HD
- Sega Ages: Phantasy Star
- Valkyria Chronicles
- Friends of Ringo Ishikawa
- Cadence of Hyrule
- Splatoon 2: Octo Expansion
- Mario + Rabbids: DK Expansion
- Dragon Quest 3
- Transistor
- The Messenger

Planned Purchases:
- Pokemon Sword/Shield
- Dragon Quest XI S: Echoes of an Illusive Age

Playing at the moment:

Pokemon Sword (Playing through the Sacred Sword hack) - 18 hours

Finished, in order (hours it took to beat the 'main story'):

1. Little Nightmares (NS) (played 6 twice and the boy once - total of 14 hours)
2. Steamworld Heist (NS) (4 hours)
3. Katamari Damacy Reroll (NS) (10 hours)
4. The Binding of Issac (NS) (5 hours)
5. Smash Bros Ultimate (NS) (65 hours)
6. Wargroove (NS) (20 hours)
7. Final Fantasy IX (NS) (23 hours)
8. Dragon Quest V (DS) (50 hours)
9. Dragon Quest IV (DS) (40 hours)
10. New Super Mario Bros. U Deluxe (NS) (5 hours)
11. Tetris 99 (NS) (40 hours)
12. Tangledeep (NS) (30 hours)
13. Game Dev Story (NS) (10 hours)
14. Diablo III (NS) (21 hours)
15. Overcooked 2 - DLC (NS) (10 hours - 60 in the game total)
16. Final Fantasy X (NS) (51 hours)
17. Art of Balance (NS) (10 hours)
18. Death Squared (NS) (5 hours)
19. Back to Bed (NS) (5 hours)
20. Dragon Quest VIII (3DS) (42 hours)
21. Dragon Quest Heroes (NS) (25 hours)
22. Fire Emblem: Three Houses (170 hours total)
    
    1. Fire Emblem: Three Houses - Church Route (NS) (45 hours)
    2. Fire Emblem: Three Houses - Empire Route (NS) (40 hours)
    3. Fire Emblem: Three Houses- Golden Deer Route (NS) (43 hours)
    4. Fire Emblem: Three Houses- Blue Lion Route (42 hours)
23. Dragon Quest XI S (NS) - Main game (63 hours)
    
    1. Final ending (90 hours)
24. Super Monkey Ball: Banana Blitz (NS) (1.5 hours)
25. Pokemon Sword (95 hours)
26. Ni No Kuni: Wrath of the White Witch (NS) (30 hours)

Started, but lost interest and quit:

• Xenoblade 2 (NS) (4 hours)
• Final Fantasy VII (NS) (3 hours)
• Yoshi's Craft World (NS) (3 hours)
• Quest of Dungeons (NS) (10 minutes)
• Final Fantasy X-2 (NS) (6 hours)
• Hollow Knight (NS) (1 hour)
• Astral Chain (21 hours)
• Dragon Quest Heroes II (NS) (25 hours)
• Cuphead (NS) (15 hours)

I've played a fair bit over the past month:

Shifted Astral Chain, DQH2 and Cuphead to the abandoned list. I honestly can't see myself picking any of them up again this year, even if I did it would be under new files.

I put another 30 hours into DQ11's post-game, could have got more - it's easily one of the best games I've ever played. Such a fantastic experience from start to finish.

I completed SMB: Banana Blitz in 1.5 hours (every world) - I ended up returning the game to the store because that's ridiculous; I would have kept it if the mini games were as infinitely replayable as in 1 and 2, but they're of course not.

I poured a lot more time than I thought I would in to Pokemon Sword - the game itself is very average, but the wild area is a great template for future entries (too bad it'll probably be left behind for 'uniqueness').

I'm 18 hours into Ni No Kuni atm and loving it. Only thing I'm hating is Oliver's VA, but literally everything else is fantastic.

Edit: Completed Ni No Kuni after 30 hours. Great game, I loved practically everything, only thing is that it felt very grindy with the lategame difficulty spike. No other complaints though, an incredible game.

Super Mario Galaxy
Spiderman (PS4)
Crash Team Racing Nitro Fueled
Borderlands GOTY
Borderlands Presequel
Rise of the Tomb Raider
Farcry 4
Team Sonic Racing
Farcry Primal
Persona 5 Dancing in Starlight
Dangan Ronpa
Dangan Ronpa 2
Slay the Spire
Resident Evil 4
Fallout 3 GOTY
The Outer Worlds
Grid 2
Ratchet & Clank Crack In Time
God of War
Horizon Zero Dawn
GTA Vice City
Spyro 3 (PS4)

+ Call of Duty: Modern Warfare (2019) (Xbox One)

Last update was from November. New games are bolded.

Games I've finished in 2019:

• Batman: Arkham Knight
• Batman: Arkham City Remastered
• Little Nightmares
• Override: Mech City Brawl
• Knee Deep
• Mortal Kombat X
• Planet of the Eyes
• Azkend 2: The World Beneath
• MONOPOLY Plus
• Spencer
• ARK: Survival Evolved
• Jump, Step, Step
• Crash Bandicoot
• Crash Bandicoot 3
• Spyro The Dragon
• Spyro Ripto's Rage
• Spyro Year of the Dragon
• Descenders
• ACA Neo Geo Metal Slug
• ACA Neo Geo Metal Slug X
• Sniper Elite 4
• Yoku's Island Express
• Bridge Constructor Portal
• Glass Masquerade
• The Station
• CastleStorm Definitive Edition
• Rivals of Aether
• Outer Wilds
• Call of Duty WWII
• Gears of War 4
• Grab the Bottle
• Rememoried
• ACA Neo Geo The Last Blade
• Outbreak The Nightmare Chronicles
• Woodle Tree Adventure
• Haunted Halloween '86
• Rock 'n Racing Off Road DX
• Crackdown 3
• Hellblade Senua's Sacrifice
• SteamWorld Dig 2
• The Mooseman
• Deployment
• Guacamelee 2
• Old Man's Journey
• Thief of Thieves
• Wargroove
• The Walking Dead A New Frontier
• SOMA
• The Evil Within 2
• ACA Neo Geo Zedblade
• InnerSpace
• What Remains of Edith Finch
• Headlander
• Assassin's Creed Origins
• Pumped BMX Pro
• Unravel 2
• Gnomes Garden 3
• Snooker Nation Championship
• Superhot
• Storm Boy
• World Enduro Rally
• MechaNika
• Shadow of the Tomb Raider
• Planet RIX-13
• Daggerhood
• Midnight Deluxe
• Heroes Trials
• Access Denied
• Super Destronaut DX
• FullBlast
• LEGO Pirates of the Caribbean
• LEGO Harry Potter: Years 1-4
• LEGO Harry Potter: Years 5-7
• Adam's Venture Origins
• Elea
• Fire: Ungh's Quest
• Crash Bandicoot 2
• Shiny
• Jettomero: Hero of the Universe
• Hexologic
• Hero Express
• Final Fantasy VII
• Riverbond
• Omega Strike
• Albedo: Eyes from Outer Space
• 10 Second Ninja X
• Creature in the Well
• Awesome Pea
• Candleman
• ASCENDANCE - First Horizon
• Felix The Reaper
• The Outer Worlds
• Trials Rising
• Demetrios
• Tracks
• Voodoo Vince Remastered
• Fractured Minds
• Song of the Deep
• Kingdom Hearts III
• Minit
• Road Rage
• Varenje
• Gears 5
• Bad North
• Bear With Me: The Lost Robots
• Super Weekend Mode
• My Friend Pedro
• Crash Team Racing Nitro Fueled
• Wheelspin Frenzy
• The VideoKid
• Super Wiloo Demake
• Gears of War Ultimate Edition

Currently working on:

• Afterparty
• Life is Strange 2
• Candle: The Power of the Flame

Started but not actively playing:

• too many to list

+ Gunvolt Chronicles: Luminous Avenger iX (Xbox One) - 1000G