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About Afterbeat (Project Arrhythmia)
Afterbeat is a musical bullet‑hell where rhythm drives every hazard. Over twenty handcrafted stages pulse with light and sound, each scene advancing a sci‑fi story about the LMNS disease and researcher Anna Schroeder.
The game supports up to four players in local split‑screen co‑op and includes a built‑in level editor that lets anyone sync obstacles to any music, feeding a thriving Steam Workshop of thousands of community levels.
01 / THE GUIDE
Complete Story Mode
The single‑player campaign offers more than twenty hand‑crafted levels, each timed to music and woven into a narrative about LMNS and Anna’s search for a cure. Anna and her supercomputer HAL investigate “Projects” using a pulse‑based interface.
Multiple endings are tied to Anna’s judgment of player performance, so the way you navigate each beat‑driven scene can change the story’s conclusion.
- Anna will judge how you do, so pay attention to her assessment as you play through each scene.
- Listen for musical intensity spikes, as they often precede tougher hazard patterns.
02 / THE GUIDE
Local Co‑op Play
Up to four players can share a single screen, tackling the same rhythm‑driven challenges together. The split‑screen layout requires each participant to dodge beats and blocks in sync with the music.
Co‑op demands coordination, because hazards appear across the shared view and everyone must navigate the evolving scenes in time with the beat.
- Communicate timing cues verbally to avoid overlapping movements.
- Spread characters across the screen to reduce crowding during dense bullet patterns.

03 / THE GUIDE
Robust Level Editor
Afterbeat includes a built‑in editor that lets users design stages using any chosen music track. Designers place beats, pulses, and blocks to create rhythm‑synchronized obstacles that match their soundtrack.
Created levels can be uploaded directly to the Steam Workshop, where they become part of the game’s integrated content library.
- Test a level with a short music clip before finalizing to ensure timing feels natural.
- Vary block patterns throughout a track to keep players engaged.
04 / THE GUIDE
Community Levels & Workshop
The Steam Workshop hosts a wealth of user‑created content, with over two thousand community levels already uploaded. These levels use the same rhythm‑based mechanics as the core game.
Because the workshop is fully integrated, players can browse, download, and play community creations without leaving the game, providing a constantly expanding pool of challenges.
- Sort workshop entries by recent uploads to discover the newest rhythm challenges.
- Try levels that use unfamiliar music genres for a varied gameplay experience.
05 / THE GUIDE
Full Controller Support
Afterbeat lists full controller support, allowing navigation of beats and hazards with gamepads such as DualShock and DualSense. The feature is recommended for a comfortable rhythm experience.
Controller compatibility extends to Remote Play, enabling the game to be streamed to a TV while still using a gamepad for input.
- Try both DualShock and DualSense controllers to see which feels more responsive for fast sections.
- A gamepad is recommended for comfortable play, so consider using one during rapid sequences.





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