Isaac OST (Mostly In-Game Order)

TBOI OST - 46 - Genesis Retake Light (Repentance Title Screen)

TBOI OST - 67 - Genesis Retake Dark (Tainted Character Select Screen)

Descent

TBOI OST - 2 - Diptera Sonata "Song of Flies" (Basement)

Innocence Glitched

Lucidate

TBOI OST - 21 - Perculum "Risks" (The Celler)

Outside The Fold

Depression Shop

TBOI OST - 36 - Fundamentum "Foundation" (Burning Basement)

Flashpoint (Burning Basement)

TBOI OST - 5 - The Forgotten (Secret Room)

Super Secret Room

Bygone (Ultra Secret Room)

TBOI OST - 3 - Crusade (Basic Boss Fight)

TBOI OST - 34 - Cerebrum Dispersio "Brain Dispersion" (Alternate Boss Fight)

TBOI OST - 8 - The Calm (Boss Defeated)

Invictus (Boss Fight)

Spinning Out Of Orbit

River Of Despair (Downpour)