
- Action
- Adventure
- Indie
- Strategy
Game
Afterbeat (Project Arrhythmia)
A musical bullet-hell where all things beautiful are deadly. Dodge well little nanobot, you don't have much time.
A musical bullet-hell where all things beautiful are deadly. Dodge well little nanobot, you don't have much time.
About Afterbeat (Project Arrhythmia)
- Released
- June 2019
- Developer
- Vitamin Games
- Publisher
- Kwalee
- Engine
- Unity 2021
- Platforms
- Linux · PC (Microsoft Windows) · Mac
Where to get it
Release, studio and platform data from IGDB. Store links go to the sellers, not to us. We do not sell games and we do not host files.
Browse everything
Sorted, filterable and paged. Every link goes to the author’s own download.
From the developers
Official announcements, newest first. Posted on Steam.
- Community AnnouncementsBroadcastWatch us play the game, live!
- Community AnnouncementsAfterbeat Update v26.10.8Changelog (all stuff since launch) AddedRadio mini-game: a short blip sfx now plays the moment you land on a signal.Radio mini-game: status shows SIGNAL FOUND (3–5 cells), LOCKING (1–2 cells), LOCKED (on the signal), and SIGNAL LOST after you leave the search range.Radio mini-game: the status box is now color-coded, with yellow for found, green for locking, blue for locked and pink-red for lost...
- Community Announcements1.0 Bundles!Have you been eyeing one of these games? Get it, along with Afterbeat, as a bundle and receive a neat discount. We’ve partnered with these studios to bring you the very best of rhythm perfection.A Dance of Fire & IceA Dance of Fire and Ice is a strict rhythm game. Keep your focus as you guide two orbiting planets along a winding path without breaking their perfect equilibrium. BPM: Bullets Per...
- Community AnnouncementsAFTERBEAT 1.0 IS OUTDid you think it would never come? Wrong!1.0 is here and it’s available for you to play right now – whether you’ve been here since the start of early access or stumbled upon Afterbeat yesterday, I’m so glad you’re celebrating this launch.Set in 207X, a mysterious disease called "LNNS" has been ravaging the world. A lone Chiral researcher, Anna Schroeder, attempts to find the cure with her trust...
- Community AnnouncementsWant To Win A Steam Gift Card?Excuse me, just pausing your gameplay to show you this giveaway we are running to celebrate the launch in 2 weeks!2 Winners will receive $50 Steam Gift Cards – all you have to do to enter is answer an Afterbeat-specific question. Enter using THIS LINKEntries are running from 24th September 3pm UTC – 8th October 3pm UTC.Good luck everyone!Join the community!To get the latest game news and hang o...
- Community AnnouncementsContent PlaytestTimelineEntries End: September 2nd, 2026Playtest Starts: September 4th, 2026Playtest Ends: September 10th 2026DetailsYou must own the game and be willing to give feedback at the end of the playtest! Playtest participants will be notified via discord and added to a special Discord channel in the official Vitamin Games server. So make sure you're in the server! Also please ensure you have spelled...
- Mods indexed
- 3.4k
- Versions
- 0
- Newest tracked
- none yet
- Most disruptive update
- No breakage data for this game
Most downloaded
Measured from the source's own counts, summed across every release.
- Party TimeSong Title: Party Time Song Artist: Teminite - Level Creator: ol666 Level Difficulty: Hard Level Description: Nautilus gets captured and transformed by The Core, a restless killing machine. Thank you Unity for the awesome thumbnail!27.4k downloads
- MedusaSong Title: Medusa Song Artist: F-777 - Level Creator: ol666 Level Difficulty: Expert Level Description: The strongest assassin and warrior, who stands on top of them all, Medusa, is ready to fight! Thank you Zlucky for the awesome thumbnail!24.5k downloads
- Surface TensionSong Title: Surface Tension Song Artist: Teminite & PsoGnar - Level Creator: ol666 Level Difficulty: Hard Level Description: After a long battle, Jestar locks you in his heart locket. And now... All hope seems lost. Thank you Unitace for the awesome thumbnail!22.5k downloads
- Peer GyntSong Title: Peer Gynt Song Artist: cYsmix - Level Creator: ol666 Level Difficulty: Normal Level Description: Don't you know it's dangerous to be outside so late? Thank you Unity for the awesome thumbnail!21.3k downloads
- NautilusSong Title: Nautilus Song Artist: Creo - Level Creator: ol666 Level Difficulty: Normal Level Description: Nautilus comes again but this time with more power! he wants to take your soul and bring it to his master. thank you Airsea for the awesome thumbnail!19.2k downloads
- opiaSong Title: Opia Song Artist: Shirobon - Level Creator: Vitamin Games Level Difficulty: Hard Level Description: It's side story boss time! Good luck surviving your meeting with Nowo!18.3k downloads
- A new dawnSong Title: A new dawn Song Artist: Teminite - Level Creator: ol666 Level Difficulty: Expert Level Description: After losing in battle to Colossus, your soul has been taken. And now... It's time you meet the true villain. Thank you Unity for the awesome thumbnail!18.3k downloads
- perfect machineSong Title: Perfect Machine Song Artist: Shirobon - Level Creator: Vitamin Games Level Difficulty: Expert Level Description: Demo: Level16.0k downloads
- AlacritSong Title: Alacrit Song Artist: Kaixo - Level Creator: ol666 & Mecha Level Difficulty: Hard Level Description: 1/5 of the pack. A simple beginning to a complex end. Nowo by Aratonati, Complex by Maxter. Thank you Starrlet for the awesome thumbnail!15.6k downloads
- MutantMutant By Teminite & Evilwave Level By: ol666 Difficulty: Hard Description "I put my heart and my soul into my work, and have lost my mind in the process." - Vincent Van Gogh Thank you Markuris for the awesome thumbnail!15.4k downloads
- cyber partySong Title: Cyber Party Song Artist: Shirobon & Radix - Level Creator: Vitamin Games Level Difficulty: Hard Level Description: Demo: Level15.3k downloads
- ExoplanetSong Title: Exoplanet Song Artist: Creo - Level Creator: ol666 Level Difficulty: Expert Level Description: Your body gets infected with a dangerous virus named Colossus. Thank you zLucky for the awesome thumbnail! Thank you CrAzY TrAiN for animating the fake players >:D15.3k downloads
- immuneSong Title: Immune Song Artist: Shirobon (ft. Camden Cox) - Level Creator: Vitamin Games Level Difficulty: Hard Level Description: Demo: Level14.9k downloads
- ChatterboxSong Title: Nock em Song Artist: Bossfight - Level Creator: ★MoNsTeR★ Level Difficulty: Expert+ Level Description: Chatterbox is ready to meet you! He is extremely unpredictable and dangerous! Good luck! Thank you Kotputin for the miniature!14.8k downloads
- MeowchineMeowchine By Azazal & MachineDoll Level By: Aratonati Difficulty: Expert Description (Level 6/10 of the Ad-OwO-ble pack) It's more machine now than cat... Creds to Sticky Goodra for the thumbnail!13.8k downloads
- Space Invaders [Four Madmen]Space Invaders By Teminite & MDK Level By: ★MoNsTeR★ Difficulty: Expert+ Description Finally, I have three elements. I believe they can turn the crystal to the forces of good. After that, I will need to get to Claire so that she can turn the crystal back into evil forces and stop the collapse of...13.4k downloads
- AuraSong Title: Aura Song Artist: Creo - Level Creator: ol666 Level Difficulty: Hard Level Description: After Nautilus's failure attempt to steal your soul Aura is stepping into the battlefield! thank you Airsea for the awesome thumbnail!13.2k downloads
- I Said Meow (Project Arrhythmia Remake)I Said Meow (Project Arrhythmia Remake) By Azazal & Said Level By: TopazTheCrossCat Difficulty: Expert Description Finally,after all these months,I Said Meow became PLAYABLE! Thanks for Linkyop and GincentVeez for the Jsab prefabs and circle warnings!13.1k downloads
- First CrushSong Title: First Crush Song Artist: Sabrepulse - Level Creator: ol666 Level Difficulty: Expert Level Description: Beware of Nautilus and Aura because they are in for a fight and they wont stop until they get what they want! thanks Airsea for the thumbnail13.1k downloads
- Running my headSong Title: Running my head Song Artist: Shirobon - Level Creator: ol666 Level Difficulty: Expert Level Description: Puffer never wanted to hurt anybody, but it looks like someone is controlling his head to make him evil. Thank you GingerPlague for the thumbnail!12.9k downloads
- Three madmenSong Title: Three madmen Song Artist: Breaking point - Level Creator: ★MoNsTeR★ Level Difficulty: Expert Level Description: Three madmen on the side of Siley! They do not suspect that Siley is turning into a monster! You need to stop them and return the crystal before it's too late! My second lev...11.7k downloads
- Right MeowRight Meow By Azazal Level By: The Drawer Difficulty: Hard Description I just found Azazal and their songs are purr-fect for this cute pack, especially for a cat boss! Level 3/10 of the Ad-OwO-ble Pack. Any helpful feedback would be much appreciated! :D11.5k downloads
- Meowter SpaceMeowter Space By Tryple & Azazal Level By: Aratonati Difficulty: Expert+ Description (Level 11b/10 of the Ad-OwO-ble pack) In shock that it destroyed the wrong weapon, Hal must stop Kitcat, who is now overpowered on space milk.11.4k downloads
- OpiaSong Title: Opia Song Artist: Shirobon - Level Creator: The Drawer Level Difficulty: Expert Level Description: My first boss level and the only song in the pack that is not included in Melody's Escape. Good luck! Level 7/7 of my Project Arrhythmia "Melodical Escapism" series! Any help and feedbac...11.0k downloads
Browse all 3.4k Afterbeat (Project Arrhythmia) mods Sortable by downloads, rating and date.
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Why Afterbeat (Project Arrhythmia) mods break
A mod is compiled against one version of a game. When the game updates, anything that reached into the parts that moved stops working, and it usually stops working silently rather than with a message that explains itself.
That is what the table above counts. It is not a guess: each row is a mod the community has reported as broken by that specific release. The number is a fair measure of how disruptive an update was, and it is the reason people delay updating a game they have modded heavily.
Common questions
Does IndexGG host Afterbeat (Project Arrhythmia) mods?
No, and it never will. Every download link points at the author's own page on Nexus, GitHub, CurseForge or wherever they published it. We index the ecosystem; the files stay with the people who made them.
Where does the compatibility data come from?
From the communities that maintain it in the open, not from guesswork. Each claim carries how it is known, so a reported breakage is never presented as though the author said it.
Why is a mod listed as broken when it works for me?
Compatibility depends on your exact game version and the rest of your load order. A mod marked as broken in one release may work fine on an older one, which is exactly why the version is recorded next to the claim rather than a bare yes or no.






