
Screenshots

Watch trailer on Steam ↗EternAlgoRhythm
Agecaf · Published by Agecaf
8 user reviews — 100% positive (8 reviews) · 23 achievements
Last updated 28 Sept 2026
A 1-to-10-key rhythm game where both the notes you hear and the notes you play are procedurally generated. Tap and hold notes through eternal, ever-changing melodies!
£10.00
Lowest price we've ever recorded
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Price history
Indie · 2024 · More £5 - £15 games
Dive into EternAlgoRhythm and master procedurally generated notes in a unique 1-to-10-key rhythm challenge. Explore endless, dynamic tunes crafted by Agecaf for an immersive musical journey.
About this game
What kind of game is this?
- EternAlgoRhythm is a unique 10-key rhythm game!
- Immerse yourself in procedurally generated music and charts. Can you adapt to ever-changing melodies?
- Tap or hold notes as they reach the judgement line. Or improvise your own! Each key is a note, your keyboard is your musical instrument!
What makes this game different from other rhythm games?
- In EternAlgoRhythm, the music never stops until you stop—it's truly eternal!
- Discover unique styles in every track, where replaying means facing new, ever-changing notes. Adapt and improvise for an unpredictable musical experience!
- Unlock the power of everlasting combos. In EternAlgoRhythm, your rhythm journey never ends, and your combos can always go further. How long can you keep the music alive?
How difficult is this game?
- Explore a wide range of difficulties tailored to your skill level.
- Customize the music speed to your liking—slow down for practice or crank it up for a thrilling challenge!
- Adjust the number of keys to match your playstyle in the settings. Flexibility is key!
- Track not just combos but streaks, which allow room for a few missed notes, and aim for high excellence with consecutive precision hits!
Who is Agecaf?
Hi all, I'm Agecaf, a Spanish/Mexican mathematician and game developer, based in the UK. And I want to make games that push the boundaries of what games can be. While I've been in quite a few game jams, this is my first time embarking on a professional project. I hope you'll join me on this adventure! I would also like to thank Anairo for her amazing work on the cover and capsule art!
System Requirements
Will my PC run this? →Minimum
- OS *: Windows 7
- Processor: 2+ cores
- Memory: 200 MB RAM
- Storage: 90 MB available space
Recommended
- OS: Windows 10
- Processor: 2+ cores
- Memory: 400 MB RAM
- Storage: 150 MB available space
Supported Languages
Latest news
AnnouncementsOfficial
Announcing: Bridge to the Abyss!
I've been working on a game I am finally ready to announce; Bridge to the Abyss.It is a game about avoiding fish, with a pretty nice piano soundtrack.This announcement coincides with the celebration of the 2-year anniversary of the release of EternAlgoRhythm. Thanks everyone who's played and supported the game!If you'd like to keep an eye on the game I'm working on, please give it a wishlist! And if you like to hear some nice piano music with a 15/16 time signature, do check out the announcement trailer!Read full article on Community Announcements (agecaf)AnnouncementsOfficial
New Leaderboards!
New leaderboards!The main version of the game now has leaderboards! After you play a track and view your score, you can have a look at how your score ranks among other players! You can also sort the leaderboards according to many criteria; rank, combo, 2 minute accuracy, etc.Difficulty ratings!Now each track in the game has its own difficulty rating, to quickly see an estimate of how hard a track is. Some of the newer collections have tracks that are suitable for beginners, while some of the first collections have some of the most challenging tracks; so this should help everyone find tracks that are fun for them!Read full article on Community Announcements (agecaf)Patch NotesOfficial
Big April Update!
What's in this update? A new, cooler, score screen. It looks like handwriting! 4 new tracks! A few quality of life improvements; now you can rebind the UI controls and use the Space bar for playing notes, and there's a wide mode available. What's this about a new score screen? Well, before the score screen was very utilitarian, it had a lot of info, but you had to scroll through it and it wasn't as exciting. It was also very quiet as it didn't have any music. Now, when you've finished a track and want to view your score, the score sheet is dropped onto your screen, and the scores are handwritten one by one. It's a pretty cool effect, I had to write numbers backwards with a black-to-red digital pen to make it work, but it was definitely worth it. Now viewing your score is a much more pleasant experience. It also now has some music to go along with it! What are the new tracks? A score to settle! - This is the music that goes in the score screen; as such it's also available in the demo version. It has three playable variants other than the empty one used for the score screen itself. The first is on the easier side but not too easy. The second is pretty hard as you play a barrage of highly randomized and echoing notes. The third one is ridiculously hard as the echoes are changed into ghost notes. 4♪~ Quatre notes - You've asked for it, and I hear you. This collection is exclusively 4-key! First track is on the easier side but still a bit tricky since some notes fall in the offbeats. The second is a step up, and the third is getting a bit challenging, but nothing too bad if you're experienced with 4-key games. Marcia incessante del progresso - This was a pretty fun experiment, the idea is that the tempo of the song always increases until it is double what it was at the beginning, after which it halves and loops back. The collection as a whole is not too hard though, the first two tracks are 4-key, with the first one being quite beginner friendly, and the second, third, a...Read full article on Community Announcements (agecaf)AnnouncementsOfficial
EternAlgoRhythm gets the Proceduralism Award from the GDWC!
EternAlgoRhythm has won a Top 5 spot for the Proceduralism Award in the Game Development World Championship for the 2024 Winter Season! {STEAM_CLAN_IMAGE}/44787563/88f3bd5afb31b86bbae3ea1fa3ad783e7b6d5f1d.png I will be honest, I was very surprised to hear the news, and I'm very grateful to the organisers and judges of the GDWC. Thanks to everyone who's supported the game!Read full article on Community Announcements (agecaf)AnnouncementsOfficial
What's coming next?
Hi all, how's everything going? You may wonder if there'll be any new updates to EternAlgoRhythm. I'm planning to create new tracks for the game, and launch them all together in the next big update, which will also include a new major feature for the game. This update should be taking place later this year. If you report any bugs, or request any small features, there would be minor updates with those releasing between now and the big update; for example there's just been an update to mute the game when you set the volume to zero (previously it just made it very quiet). You can report bugs, request features, or just say hi in the discord https://discord.gg/p4rGF2QAXW. I have also begun working on my next game, which will be a sequel to one of my game jam games. It'll be a puzzle game with singleplayer, local co-op and hopefully online co-op modes.Read full article on Community Announcements (agecaf)






