Afterbeat Steam: Project Arrhythmia Rhythm Bullet Hell

Afterbeat (Steam). Hover for a Voidge draft sketch inspired by a fragment of the capsule key art.

Lowkey, Afterbeat is the rhythm bullet hell I keep coming back to when I want my eyes and my thumbs to be equally busy. You might know it as Project Arrhythmia: same game, new name, and it finally left Early Access. You steer a tiny nanobot through screens that pulse, fold, and fire on the beat, and every shape that looks pretty is the thing that kills you. Version 1.0 landed on Steam on October 8, 2026 from Vitamin Games, co-published with Kwalee. App ID 440310. Price $14.99. Windows only, and Steam Deck rates it Playable.

Honestly the art direction is the whole pitch. Flat triangles, hexagons, and bars on one bold background color at a time. Coral on lavender, white beams on crimson, magenta rings on deep violet. No texture noise, no clutter, so every bullet reads in one glance even when the screen is going wild. Cute but sharp, and the little details (the dash streak behind your dot, the progress bar ticking along the bottom) keep it readable.

Open the clip on X if the embed does not load. Cut from the official Afterbeat Launch Trailer.

What is Afterbeat?

Afterbeat is a musical bullet hell where you dodge, you never shoot. The store sums it up as a game where all things beautiful are deadly, and that is exactly the feel. Steam players tag it Music, Rhythm, Bullet Hell, Action, Difficult, Level Editor, 2D, Arcade, Local Co-Op, 4 Player Local, Abstract, and Anime. No Horror tag, no content warnings, and no AI disclosure on the store page we checked.

What you get in the 1.0 build, straight from the store:

• A complete story mode with 20+ hand crafted levels and multiple endings
• Stages timed to the music, each one telling a little story while you dodge
• Up to 4 players in local co-op, shared screen
• A full level editor that works with whatever music you want
• Steam Workshop support, with 2000+ community levels already uploaded

Steam also lists 21 achievements, full controller support (gamepad recommended), camera comfort and contrast options, custom volume controls, and five interface languages: English, Spanish, Japanese, Russian, and Simplified Chinese.

Is Afterbeat on Steam?

Yes. The afterbeat steam page is the same store page Project Arrhythmia fans already own, so existing players kept the game when it was renamed. The 1.0 launch trailer flashes the pitch in big type: feel the beat, dodge the shapes, bullets, bombs, beams, story mode, battle bosses, create custom levels, share with the community, local co-op. Simple, loud, and it matches the game.

Story mode: Anna, HAL, and the LMNS cure

The story is set in 207X. A mysterious disease called LMNS is ravaging the world, and a lone Chiral researcher, Anna Schroeder, hunts for a cure with her supercomputer companion HAL. The duo stumbles on a set of "Projects" and starts testing a cure through a pulse and rhythm based interface. That interface is you. Between levels you get anime portraits and terminal style dialogue, and Anna grades how you did.

The capsule art leans into that anime cast: Anna in chunky gold headphones and an oversized orange jacket, back to back with a curly white haired figure in a black suit. It's giving cyber mystery album cover, and honestly it is a smart way to give a game made of triangles a face.

Boss fights that read like a song

Bosses are where Afterbeat flexes. One screenshot shows a hexagon boss with a single huge teardrop eye, framed by teal triangles, spraying rows of coral triangle bullets across a lavender screen while a row of teeth hangs from the top edge. You dash, the screen drops, and the pattern lands exactly on the beat.

Afterbeat (Steam). Hover for a Voidge draft sketch inspired by a fragment of the boss fight screenshot.

One reviewer points out that your dash has no cooldown, which is why the game feels hard but fair instead of cruel. If you liked how Beat, Heart, Beat turns music into movement, this is the same idea with way more bullets.

Beams, snakes, and pure palette

My favorite still is the crimson one. A segmented snake made of zigzag drum blocks and oval discs crawls through a blocky maze while dozens of white beams explode from behind its head like a starburst. Your little square hides in the gap between two beams. That is the feel of the whole game: one color, one shape language, total chaos, still readable.

Afterbeat (Steam). Hover for a Voidge draft sketch inspired by a fragment of the beam snake screenshot.

What the trailer shows

Our clip keeps three beats of pure play from the official Afterbeat Launch Trailer (movie 257450248). First, a grey square tunnel that spins into a violet scene full of pink lasers and cyan rings. Second, a boss run: a floating eyeball orb, the hexagon eye boss, a green cube face, a white lightning burst, and orange crossing beams. Third, a fast run of stages with white hexagon clouds, magenta rings, and crashing pillars. No menus, no logo cards.

From Project Arrhythmia to 1.0

The game's creator, Pidge, posts as @vg_pidge on X (about 2.1k followers), with a bio that reads creator of Afterbeat, previously Project Arrhythmia. The account is active: launch week replies to players, level clips like "The level's drop is absolutely insane!" on October 14, and posts again on October 17. Longtime fans are celebrating too. One posted "It's been 7 years and finally" with the #projectarrhythmia tag, and the A Dance of Fire and Ice team announced an Afterbeat x ADOFAI bundle for the launch.

Is Afterbeat worth it?

Here is the scoreboard as of about 19:07 BRT on October 17. Steam reads Overwhelmingly Positive, with 2,643 of 2,769 reviews positive across all languages (about 95%) and 1,874 of 1,956 in English. Players praise the music, the boss levels, and the quality of the custom levels, and several call the story short but sweet. The honest knocks: plenty of reviewers say it plays a lot like Just Shapes and Beats, the story mode is on the short side, and one co-op group hit a bug where players swapped on the final boss.

Who should grab it?

Grab Afterbeat if you love rhythm games that you feel in your hands, flat graphic design with a strong palette, or making and sharing your own levels. Couch crews get a bonus with local co-op. Skip it if fast flashing screens bother you or you want online multiplayer. For me it is a clean yes: the palette alone sold me, and the boss drops kept me. For another tight indie that gets its look and feel right in one glance, see Petal Crash 2.

Image credits & rights

Images on this page are hotlinks from the official Steam store assets for Afterbeat (Project Arrhythmia), used with respect for their copyright.

• Afterbeat on Steam
• Pidge (@vg_pidge), creator of Afterbeat, on X
• Vitamin Games
• Screenshot sources remain on the Steam CDN (capsule and store screenshots for app 440310). Voidge hosts only purple crop-inspired draft sketches for hover and fallback, plus the short blog clip.