In rough order of best downward. I haven't included every single song I love for each game for the sake of variety.

1-10:

The Day of Night - Silent Hill 2
Theme of Laura - Silent Hill 2
Forest - Silent Hill 2
Promise Reprise - Silent Hill 2
True - Silent Hill 2
Kaer Morhen - The Witcher 3
The Fields of Ard Skellig - The Witcher 3
The Trail - The Witcher 3
Whispers Of Oxenfurt - The Witcher 3
You're... Immortal? - The Witcher 3

11-20:

My Burden is Light - OneShot
On Little Cat Feet - OneShot
Eleventh Hour - OneShot
Self Contained Universe Reprise - OneShot
Invincible - World of Warcraft
Heaven's Divide - Metal Gear Solid: Peace Walker
Sins of the Father - Metal Gear Solid V: The Phantom Pain
Snake Eater - Metal Gear Solid 3: Snake Eater
You Were There - Ico
Castle in the Mist - Ico

21-30:

Red Sun - Metal Gear Rising: Revengeance
Rules of Nature - Metal Gear Rising: Revengeance
A Stranger I Remain - Metal Gear Rising: Revengeance
I'm My Own Master Now - Metal Gear Rising: Revengeance
The Only Thing I Know For Real - Metal Gear Rising: Revengeance
Sundown Theme - Rain World
Moondown Theme - Rain World
Pictures of the Past - Rain World
The Power Orchestral - Baldur's Gate 3
Battle Theme 2 - Baldur's Gate 3

31-40:

Resurrection - Shadow of the Colossus
Prologue - Shadow of the Colossus
Prohibited Arts - Shadow of the Colossus
Nox Atra - Beyond Skyrim: Bruma
Maker of Worlds - Beyond Skyrim: Bruma
Dragonborn - The Elder Scrolls V: Skyrim
Secunda - The Elder Scrolls V: Skyrim
Silt Sunrise - The Elder Scrolls III: Morrowind
Nerevar Rising - The Elder Scrolls III: Morrowind
Harvest Dawn - The Elder Scrolls IV: Oblivion

41-50:
Timber Hearth - Outer Wilds
Outer Wilds - Outer Wilds
River's End - Outer Wilds
The Tale of a Cruel World - Calamity
Stained, Brutal Calamity - Calamity
Universal Collapse - Calamity
Serenity - Vanilla Calamity Mod Music
Spider Dance - Undertale
Heartache - Undertale
Spear of Justice - Undertale

51-60:

Virgo Serena - The Talos Principle
The Sigils of Our Name - The Talos Principle
Temple of My Father - The Talos Principle
Prelude - Final Fantasy 7
J-E-N-O-V-A - Final Fantasy 7
All Bets Are Off - Cuphead
The Best is Yet to Come - Metal Gear Solid
A Moment's Peace - Dark Souls
Great Grey Wolf Sif - Dark Souls
American Venom - Red Dead Redemption

61-70:

Snow or Cherry Petal - Touhou 7
The Doll Maker of Bucuresti - Touhou 7
The Capital City of Flowers in the Sky - Touhou 7
Take Over - Persona 5 Royal
Life Will Change Instrumental - Persona 5 Royal
Specialist - Persona 4
Hollow Knight - Hollow Knight
Greenpath - Hollow Knight
Not Tomorrow - Silent Hill
Tears of... - Silent Hill

71-80:

Main Theme - The Last of Us
The Path (A New Beginning) - The Last of Us
Collage - Nine Sols
Yi's Theme (The Path for Us All) - Nine Sols
Aria Math - Minecraft
Pigstep - Minecraft
Devil Trigger - Devil May Cry 5
Never Fade Away - Cyberpunk 2077
Final Battle - Elden Ring
OMORI - OMORI

81-90:

Prologue Intro Theme - Super Metroid
Brinstar (The Jungle Floor) - Super Metroid
Main Theme - Halo
Title Theme - The Legend of Zelda: Twilight Princess
Street Party - Bloons Monkey City
Save Theme - Resident Evil 7
Save Theme - Resident Evil 2
…con lentitud poderosa - Risk of Rain 2
Pressing Persuit ~ Cornered - Ace Attorney
Gathering Horizon - Factorio

91-100:

HYPER - HYPER DEMON
La Danse Macabre - Shovel Knight
Strike the Earth! - Shovel Knight
In the Halls of the Usurper - Shovel Knight
Title Theme - Ori and the Blind Forest
Title Theme - Ori and the Will of the Wisps
Title Theme - Super Smash Bros. Ultimate
Coconut Mall - Mario Kart Wii
Bad Apple - Touhou 4
Gourmet Race - Super Smash B