I have endorsed Pain&Prosperity's idea of keeping track what games I've finished ( ) and/or got all chievos ( ) for during the current year:

Tick Tock - A tale for two [iOS]
Coffee Talk [PS5]
Very Little Nightmares+ [iOS]
Short trip
Bloodshore
Shadow of the Tomb Raider
Toilet Chronicles
Cherophobia
Go Home Annie
True Crime Streets of LA
Tales of Monkey Island - Chapter 1: Launch of the Screaming Narwhal [iOS]
Gothic 1 Remake - Demo (Nyras Prololgue)
Just Cause
Yakuza 0
Tales of Monkey Island - Chapter 2: The Siege of Spinner Cay [iOS]
My name is mayo [PS Vita]
My name is mayo
The unluckiest man
Zero Escape: The Nonanry Games - 999 [PS Vita]
Burly men at sea [PS Vita]
Uncharted: Golden Abyss [PS Vita]
Persona 4: Dancing All Night [PS Vita]
The Simpsons Hit & Run

Lists for the previous years: Years in gaming [docs.google.com]