The Assembly Pack

Collection by Numbur99

A collection of 8 levels. These levels are some of my best to this point and time. I hope you, the player, will enjoy them and have fun.

Black Heart

Collection by ol666

A custom story made out of ONLY BOSSES! The more you progress the better the levels become.

Another World

Collection by DXL44

Story-focused level collection - Sent by the stars, you go to save a world with no name, one that isn't all too welcoming. Another World is complete, and Preacher is its ending. It will not be finished as it was planned, but it has been finished as I wishe

Dark Delirium [CANCELLED]

Collection by Mc-Starz

A custom storyline in Project Arrhythmia created by Mc-Starz. Join Nano (the Nanobot) as they try and stop Hysteria's evil clutches while also trying not to get killed by Hysteria's ongoing possession of various characters, while also trying to figure out

Ad-OwO-ble

Collection by Aratonati

Theme: OwOs and other adorable things Boss(es): Kitcat Where all things are cute and deadly... Song List: 1. Moonlight Sonata (osu! Mix) - cYsmix 2. Lights - DJStriden 3b. Right Meow - Azazal 4. Flight - Cult of MIDI 5. Memories - ColBreakz 6b. Meowchine -

Project Elevatia

Collection by DXL44

Infinite realities. One legacy. Project Elevatia is a collection of collections that are all connected by an overarching multiversal plot and setting. Each storyline can be enjoyed individually, but all connect in some way to the Navigator Stars - a race o

Melodical Escapism

Collection by Aratonati

Theme: Melody's Escape Boss(es): Nowo Contains my first levels. The pack is inspired from Melody's Escape. Song List: 1. Running My Head - Shirobon (feat. Camden Cox) 2. Regain Control - Shirobon 3. Immune - Shirobon (feat. Camden Cox) 4. Perfect Machine -

Void Untold

Collection by dragonw1414

Custom story level pack: Discover your place in a world locked in a battle of order and chaos, and stop the world from being taken over by... something.

Level Contest 2025.1 (Fan Levels)

Collection by YeetusMcCleetus

This quarter's Level Contest (2025.1) theme is "Fan Levels" A whopping 20 levels were submitted.

The Experiments

Collection by MotionIII

Thank you for choosing the Experiment Viewer add-on for your copy of the Project Arrhythmia software. Experiment Viewer is the leading software extension for displaying and interacting with proprietary experimental-type files that cannot otherwise be viewe

Official Heartstrings Storyline

Collection by noodlekin

The story begins from within a magical healing artifact known simply as the "Heart". You are the Emissary, and your task is to rescue the Heart from its theft and corruption from the usurper king, Pilate. Surely, that's all there is to the story, right...?

The Trials Series

Collection by DXL44

Unforgettable. Inescapable. On the precipice of what you know, facing into the abyss that is what you don't. And yet, it all feels familiar on the surface. You are not a hero. You are a player, controlling a vessel, avoiding an obstacle, facing a challenge

Rhythmic World

Collection by Zudokato

My first history

Color Collider

Collection by DiggyDog

the world of project arrhythmia is in danger by a new enemy (Quad) he has taken the chamber and we must travel the world of project arrhythmia to save our lives and restore the chamber so he does not unleash what is inside.(this series does not effect anyo

The Arama Archives

Collection by Aratonati

The Arama Archives is an alternative Story Mode where a digital map leads Hal and A-tan to a collection of archives that are connected to the supercomputer. What they found there is unlike anything they have imagined despite the near hopelessness that the

Aetherborne Collection

Collection by Luminescence

A collection of collabs and a few solo levels featuring songs from Chime's Aetherborne album! I hope you have fun with it so far!! Banner and Main image by DXL44

Cosmic

Collection by nukegameplay

A custom storyline based on outer space, teamwork and friendship. Currently work in progress, it will have twelve(?)levels. Featuring simple graphics, challenging levels, some references and four main space powers: Yellow, who creates light and heat, along

The Polygon

Collection by enchart

A collection of all levels from "The Polygon" storyline made by enchart.

The Peer Gyntening

Collection by Azael

Welcome to the Gyntening!!!! I'm sorry I didn't make the collection sooner. I hope you all will enjoy this collection of purely peer gynt for your torture and my entertainment. All levels were made for this collection, thank you to everyone who participate

Best PA levels (for my opinion)

Collection by miv2nir

Just collection of my favorite levels form PA! Plz don't kill me I just wanna to show off theese levels for some youtubers to make a good opinion of this game.

True Power

Collection by Official Dre

The mysterious being creates assassins using soul power. She will not let you get away and takes any chance to gain your soul power to become the most powerful being in the universe. You must stop her by finding where she is doing this and putting an end t

The Casting Call

Collection by 卡得中心

The Casting Call PA series This series is lore-basic. You can find the lore in discord server

The Synthwave Trials

Collection by DXL44

An experimental, gameplay-focused collection of short levels with synthwave music, intended to be played together and released all at once. "I want to preface this by telling you to throw away any expectations you may have. You are not here to retrieve a s

Project Arrhytmia Levels

Collection by Qladi ⁧⁧3:

2025.2 Chiptune Contest Levels

Collection by Numbur99

All levels submitted for the 2025.2 Contest. For convenience, all of the levels are in the order of where they are in the voting form.

<100 Objects Collection

Collection by DukemzGaming

A collection of levels with less than 100 objects that are hopefully fun to play. Contact me on Discord if you want me to add your level to this!

Just Shapes and Beats Levels

Collection by DXL44

Collection of great JSAB styled or inspired levels on the Workshop. If you're coming from that game and want more of it, then play these! Ordered from oldest to newest.

Prism Series (unfinished)

Collection by oneleaf

collection of levels in the prism series (wow i suck at naming things) contains: Frontlines (advanced) Dimension (advanced) SAVE THIS WRLD (expert) Grand Finale (master) ????? ?? (advanced) ?? ??? ?????'? ??? (master) ?????? ?????????? (expert) ????? (mast

Corruption

Collection by Sierraraptor

Level pack by -Galactica-. Restore the balance of light and dark.

NO BOSS ZONE

Collection by DXL44

Want a change of pace from boss levels? Or know someone else who does? This is a collection of EVERY good level without a boss fight on the workshop that I can find. Give them some love, they could use it. If I missed a good one, let me know in the comment