An ongoing list of all assets used in Arena of the Mad King.

Libraries: 

DanmakU by james7132
https://github.com/james7132/DanmakU  

RetroTVFX By KillaMaaki
https://github.com/KillaMaaki/RetroTVFX

Artwork: 

Square Block Textures by etqws3
https://opengameart.org/content/square-block-textures

Music: 

Intro Music by RonyDkid
https://opengameart.org/content/intro-music-0  

Ancient Rite by Kevin MacLeod
https://incompetech.filmmusic.io/song/5739-ancient-rite/

Nightmare by Alexander Nakarada
https://freepd.com/horror.php

Some Background I made for my game Ambient Music by DRFX
https://freesound.org/people/DRFX/sounds/341807/

Epic Boss Battle by SubspaceAudio
https://opengameart.org/content/boss-battle-music

Midnight Mass by Dee Yan-Key
https://freemusicarchive.org/music/Dee_Yan-Key/Christmas_Album/14--Dee_Yan-Key-Midnight_Mass 

Sound Effects:

Creepy Dungeon Door Slam by Hybrid_V
https://freesound.org/people/Hybrid_V/sounds/320737/

Retro Enemy Eliminated by MATRIXXX_
https://freesound.org/people/MATRIXXX_/sounds/523765/ 

Hurt1 by thecheeseman (This person made the original Minecraft hit sound =O!)
https://freesound.org/people/thecheeseman/sounds/44428/

8-bit Hurt by timgormly
https://freesound.org/people/timgormly/sounds/170148/

Spooky Gong by Veiler
https://freesound.org/people/Veiler/sounds/207167/

Ethereal Teleport by Breviceps
https://freesound.org/people/Breviceps/sounds/466829/

Game FX #1 by danlucaz
https://freesound.org/people/danlucaz/sounds/517755/

Dark Emptiness by jalastram
https://freesound.org/people/jalastram/sounds/546178/

Fonts: 

Alpha Beta by Ænigma
https://www.dafont.com/alpha-beta.font