Afterbeat (Project Arrhythmia)
2D rhythm bullet hell with local co-op and custom levels
Vitamin Games · Published by Kwalee · Released Jun 14, 2019 · Early Access
ActionAdventureIndieStrategyEarly Access
- Reviews
- Overwhelmingly Positive
- 95% of 2,703
- Recent reviews
- Very Positive
- 95% of 23 in 30 days
- Playing now
- 7
- right now
- Steam Deck
- Playable
- Last update
- 3 months ago
- Jun 5, 2026
Free demo available, 0 playing it now: get the demo.
What is Afterbeat (Project Arrhythmia)?
This 2D rhythm-based bullet-hell game has you dodge obstacles across music-timed stages. Its short story demo follows researcher Anna Schroeder's search for a cure in 207X. You can also make and play community levels or play in local co-op with up to four players.
For you if...
- +you like dodging hazards in music-driven stages
- +you want to create and play community levels
- +you want to dodge obstacles with friends locally
Not for you if...
- −you want a complete, lengthy story campaign
- −you prefer gentle difficulty over demanding bullet hell
What players say
95% of 2,703 reviews are positive · 95% of 23 in the last 30 days
Players praise the community levels, level editor, and challenging stages. Many object to the recent name change from Project Arrhythmia; others report long loading times or lost saves and say there is too little developer-made content.
Screenshots and trailer
Afterbeat (Project Arrhythmia) system requirements
As published by the developer.
Minimum
- OS
- Windows 10 (64-bit)
- Processor
- Intel Core i5-10400F @ 2.90GHz or AMD Ryzen 5 3600
- Graphics
- NVIDIA GeForce GTX 1050 Ti or AMD Radeon RX 560
- Memory
- 8 GB RAM
- Storage
- 5 GB available space
- DirectX
- Version 11
- Notes
- For the level editor computer's of this kind can sometimes suffer
Recommended
- OS
- Windows 10/11 (64-bit)
- Processor
- Intel Core i5-10400F @ 2.90GHz or AMD Ryzen 5 5600
- Graphics
- NVIDIA GeForce GTX 1650 or AMD Radeon RX 6500 XT
- Memory
- 16 GB RAM
- Storage
- 5 GB available space
- DirectX
- Version 11
PC version details
DRM, required accounts, controller support and Steam features.
- DRM
- None declared on Steam
- Controller
- Full controller support
- Platforms
- Windows
- Achievements
- 21
- Steam features
- Workshop, Cloud saves, Family Sharing
Steam Deck: Playable
- Sometimes shows mouse, keyboard or non-Deck controller icons
- All functionality is accessible with the default controller configuration
- In-game text is legible on Steam Deck
- Default graphics settings perform well on Steam Deck
Multiplayer and co-op
Languages
Text only: English.
Tags
- Music
- Rhythm
- Bullet Hell
- Action
- Difficult
- Level Editor
- 2D
- Indie
- Singleplayer
- Arcade
- Early Access
- Multiplayer
- Co-op
- Local Co-Op
- 4 Player Local
- Local Multiplayer
Recent updates
- Jun 5, 2026 · Update Changelog - 26.6.2
- Mar 30, 2026 · Update Changelog - 26.1.1 to 26.3.9
- Jun 29, 2025 · Patch Notes Roundup - 25.3.5 to 25.6.1 [Alpha]
- Mar 24, 2025 · Alpha Branch Update - 25.3.3 & 25.3.4
- Mar 23, 2025 · Alpha Branch Update - 25.3.1 & 25.3.2
1 DLC available.
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