"Project Arrhythmia" is a musical bullet-hell in which all things beautiful are deadly. Avoid the musically timed pulse of blocks and bars, and in the process you might just find out what this mysterious "Project Arrhythmia" is.
Recent Reviews:
Very Positive (25) - 88% of the 25 user reviews in the last 30 days are positive. (88% of 25) Recent
All Reviews:
Overwhelmingly Positive (1,059) - 97% of the 1,059 user reviews for this game are positive. (97% of 1,059) All Time
Release Date:
Jun 14, 2019

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Curator Review

By Ѕtеам 250 November 19, 2019

“Project Arrhythmia was a member of the Hidden Gems until June 1st, 2021.”

Early Access Game

Get instant access and start playing; get involved with this game as it develops.

Note: This Early Access game is not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more

What the developers have to say:

Why Early Access?

“I've been working on Project Arrhythmia for about 6 years (since high school as a hobby). I still love working on the game and am 100% committed to seeing it through. I release regular updates for bugs and features submitted by the community and am working on the story mode constantly. That being said this would all move faster if I had more testers and people constantly playing the game which is why I'm pursuing early access, so I can work together to make the game ya'll want to play.”

Approximately how long will this game be in Early Access?

“My hope is the game will leave early access roughly by early December this year, once the story mode launches.”

How is the full version planned to differ from the Early Access version?

“The full version is planned to have...
- Story Mode: A full story mode containing 20+ levels and tons of lore, characters, and secrets for the player to go through.
- Level editor: Through community feedback I will be continuing to constantly improve and rework the level editor to bring it more features (e.g more powerful shape creation) and allow for better ease of use (e.g better prefab workflow).
- Steam Workshop: There will be more Steam Workshop integration to allow for faster sharing of level editor themes and prefabs.
- Steam Leaderboards: There will be Steam Leaderboards Integration to allow you to compare your finish times with your friends.”

What is the current state of the Early Access version?

“- Arcade Mode: A fun way to play user made levels with your friends in up to 8 player Local Co-Op.
- Level editor: A robust and easy to pick up level editor for user created content, built right into the game.
- Steam Workshop: Full integration with Arcade Mode and the game's Level Editor to allow easy uploading and downloading of user made levels.”

Will the game be priced differently during and after Early Access?

“I plan to gradually raise the price as I ship new content and features.”

How are you planning on involving the Community in your development process?

“The community has already been a massive help when refining the editor and the overall gameplay. I make sure to have a constant feedback loop to help me get features out that the community wants and fix the issues they have. You can join the majority of the community on the game's official Discord.”
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About This Game

"Project Arrhythmia" is a musical bullet-hell in which all things beautiful are deadly. A cacophony of lights, music, pulses and blocks, Project Arrhythmia features tight bullet-hell style gameplay where up to 4 players in local co-op must navigate their way through evolving scenes and obstacles, all timed to the beat.


Set in 205X, a mysterious disease called the “Tokyo Flu” has been ravaging the world. A lone computer programmer, Anna Schroeder, attempts to find the cure with her trusty supercomputer-companion HAL. Stumbling upon various different “Projects”, the duo decide to investigate the efficacy of a cure through the usage of a pulse and rhythm based interface.


  • Dodge The Beat: Stages consist of mesmerizing, musically timed scenes, each one telling a story. Feel the rhythm and feel your way around the hazards! Anna will judge how you do.
  • Challenge Your Friends: Up to 4 players supported in local co-op mode.
  • Robust Level Editor: Carefully designed level editor allows users to create their own levels and challenges, to whatever music they wish.
  • Huge Community: Wealth of user created content exists, fully integrated into the game through the usage of the level editor and user made levels.


  • Story Mode: Over 20+ hand crafted heart pounding levels interwoven with an engaging story.
  • More Co-Op Game Modes: Party (endless level selection with friends) / Snake (collect pellets that gradually make you larger) / Battle Royale (last to die wins)
  • Full Community Integration: Voting system for levels, better search, straight importing of levels and more
  • Cross-Platform Modding Support

System Requirements

    • Requires a 64-bit processor and operating system
    • OS: Windows 7 SP1+
    • Processor: 2 GHz+ (this varies with core count)
    • Memory: 2 GB RAM
    • DirectX: Version 10
    • Storage: 200 MB available space
    • Additional Notes: For the level editor computer's of this kind can sometimes suffer
    • Requires a 64-bit processor and operating system
    • OS: Windows 8+
    • Processor: 3 GHz+ (this varies with core count)
    • Memory: 6 GB RAM
    • DirectX: Version 10
    • Storage: 500 MB available space

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