All credit goes to DM Dokuro
DM DOKURO's channel - https://youtube.com/@dmdokuro?si=nJf9M6F-svUQgbd0
Couldn't find the original, so the link goes to his channel
I will happily take this track down if contacted

DM DOKURO - Cave Story Arranged - Run!

BPM: 110-154
Keys: A# Minor, G Minor

*What is Infernum mod?*
Infernum mod is an extension mod for Calamity that adds an extra difficulty - "Infernum", that's harder than Death mode, with a primary focus on expansive reworking of boss AIs.

And now for a big one! This took me a few days to finish, and I think I can proudly say this is by *far* my most powerful track!

Fun lil fact #3: The number of the moon is 2. LC's theme starts off at 220 beats per minute. Divides that by 2 and you get 110, which is the bpm that ML's theme starts off at. ML's theme also later on gets bumped up to 154 bpm, which is divisible by 22, similar to how LC's theme have 2 bpms that are divisible by 44.

The End Of An Olden Era

BPM: 144
Keys: B Minor, D Minor 

*What is Infernum mod?*
Infernum mod is an extension mod for Calamity that adds an extra difficulty - "Infernum", that's harder than Death mode, with a primary focus on expansive reworking of boss AIs.

Fun lil fact #2: This song has been finished since late March, but then I forgot about it till just recently, so yeah that's my bad for the late upload.As for the BPM fact- It's divisible by 18. Can ya guess why that's relevant? :P

Razorblade Monsoon

BPM: 195
Keys: B Minor

Seer of the Night was a track I made in about 5 hours, and it shows.
While it's not a bad theme by any means, I felt like it's in need of an upgrade compared to be more in line with other infernum tracks in terms of quality.
So I decided to give it a much needed boost!
I mostly just expanded on what the original already has, so don't worry, it's mostly the same theme but better!

Seer of the Night (Revisited)

This is NOT owned by me,it was created By "Heart Plus Up!„ (go on YouTube and sub on them)
I really like soundtrack so decide to add it on soundcloud!

Terraria Calamity Mod Music - *hesitation* - Theme of the Sulphuric Depths[READ DESC)

01 - Fountain of Life

I don't think this counts as an original, imho

Outcast Of The Sulphurous Seas (Ingame Version)

I only destroyed her shadow. I have a terrible feeling that I'm going to have to work harder than this.

Silence before the storms

How do you express hate and love for something that ultimately became your greatest challenge? Make a piano cover for it.

Scourge of The Universe (Eulogy For The Ego)

No crying allowed in the Astral Infection. They can smell emotion.

The Heaven-Sent Abomination

NOT MY TRACK!!! it's from Turquoise
Vid. here: https://youtu.be/j6MI9-okM6k

!Important! 
If Turquoise himself gets there tracks on soundcloud then i will remove mine, i only put these on for the people like me who like these tracks and i also used them for my playlist.
Playlist > https://soundcloud.com/spyro_the_dragon/sets/calamity-music-in-order