Steam app 2717010 · updated 12 Sep 2026, 21:12 UTC
A next-generation rhythm game where story and music intertwine. Enjoy a tracklist filled with famous licensed songs and exclusive original songs made by renowned composers Discover an immersive story, and face endless challenges. Your performance will dictate the fate of the world.
586 hourly samples, with the daily peak drawn over them. Weekends are shaded.
26 months, August 2024 to September 2026. The highest number of people in the game at once, each month, on a time axis -- a gap in the record stays a gap.
The highest number of people in the game at once, each month. Four, because four is as far back as the source keeps anything finer than one figure a month.
31 days, each one the highest figure that day. The source keeps no hourly detail this far back. Weekends are shaded.
31 days as the curve, each the highest figure that day. Behind it, 350 hourly samples from 13 Aug, which is as far back as the source keeps every hour. Weekends are shaded.
12 days as the curve, each the highest figure that day. Behind it, 236 hourly samples. Each dip is a night. Weekends are shaded.
KALPA: Cosmic Symphony was released on 1 Oct, 2025.
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50 developer announcements, Oct 2025 to Sep 2026 · times in UTC
HARDCORE TANO*C × KALPA Collaboration Confirmed! ヾ(゜Д゜)ノ HARDCORE TANO*C, the frontline of hardcore music in the rhythm game scene, is coming to KALPA: Cosmic Symphony! A total of 11 songs, including 4 brand-new original tracks produced…
カブトHello, this is QueseraGames.The TGS 2026 Sale has begun. Enjoy KALPA: Cosmic Symphony and a wide range of DLCs at special prices.\KALPA: Cosmic Symphony \The ultimate choice to fully enjoy KALPA. Get the bundle with the base game and all…
カブトHello, this is KALPA: Cosmic Symphony.Ice's legendary track "Entrance" has been added to KALPA as a free update.Enjoy "Entrance" right now, with charts all the way up to ASTRA difficulty!◤ Entrance ◢Music｜IceIllust｜Sand SunaThank you for…
カブトHello, this is KALPA: Cosmic Symphony.Ice's legendary track "Entrance" is coming to KALPA as a free update on Friday, August 28.◤ Entrance ◢Music｜IceIllust｜Sand Suna KALPA also features other great tracks by Ice.- RE:UNION -Duo Blade…
カブト\ See You in Shanghai! Hello, this is QueseraGames.KALPA: Cosmic Symphony will be exhibiting at ChinaJoy 2026, held from July 31 to August 3 at the Shanghai New International Expo Centre (SNIEC).At the QueseraGames booth (N2-12-10), we will…
カブトKALPA's powerful Forte series continues with its fourth chapter, 'Fourth Forte'🎵10 new tracks from top-tier composers.Play them now in KALPA: Cosmic Symphony. ✨ TRACK LIST🎵タイムカプセル - モリモリあつし🎵iRELLiA - HyuN🎵Freaky Undulations ~Noble Knights…
カブトHello, this is QueseraGames.Two new bundles have been added to the KALPA: Cosmic Symphony Steam store.You can now get the content you want at a better value.■ New Bundles🌌 COSMIC EDITIONA package containing the base game and popular DLCs —…
カブトHello, this is KALPA: Cosmic Symphony. "Fourth Forte", the 4th installment of KALPA's Forte series, is scheduled to release on July 24 (Fri). The following 10 songs will be added in this DLC. タイムカプセル - モリモリあつし Project "Blue Bird"…
カブトHello, this is KALPA: Cosmic Symphony.We are pleased to announce a new free track.RE:UNION -Duo Blade Against- - Ice vs. Morimori AtsushiThe track above has been added to KALPA: Cosmic Symphony as a free track with today's update.We hope…
カブトHello, this is QueseraGames. The 2026 Steam Summer Sale has started. During this sale, you can get QueseraGames' rhythm games and various DLCs at a special price.\KALPA: Cosmic Symphony Nientum - Op.ZERO \ The best choice to perfectly enjoy…
カブトThe third chapter of KALPA's powerful Forte series, "Third Forte", is here🎵10 new tracks featuring top-tier composers.Play now in KALPA: Cosmic Symphony.🎉 Launch discount 10% OFF — limited time! ✨ TRACK LIST🎵Reload Future (feat.タイココちゃんねる)…
カブトThe second chapter of KALPA's original series "Origin" arrives🎵10 brand-new original tracks crafted by world-class composers,plus the new companion Miho and a profile icon.Play now on KALPA: Cosmic Symphony.🎉 Launch Discount 10% OFF — 7…
カブトHello, this is QueseraGames. The 2026 INDIE Live Expo Sale has started. During this sale, you can get QueseraGames' rhythm games and various DLCs at a special price.\KALPA: Cosmic Symphony Nientum - Op.ZERO \ The best choice to perfectly…
カブトKALPA's second Forte series, Second Forte update complete! 🎵 ✨TRACK LIST🎵Overwrite (feat. 月乃) - INFX🎵Sadalsuud - Evin a'k🎵MilK - モリモリあつし🎵Pica Pica - horoscope a.k.a. LUZE🎵Your Mind - Roy Mikelate🎵Black Region - seatrus🎵G e n g a o z o…
カブトYou can wishlist the "Second Forte Pack" now and get notified upon release😊
カブト🌕 To the Moon X KALPA: Cosmic Symphony Collaboration! 🌠Experience the touching journey of the masterpiece story adventure, To the Moon, now in KALPA: Cosmic Symphony. The heart-touching beautiful piano melodies and unforgettable tunes will…
カブトHello. This is QueseraGames.A client pre-update has been released for the upcoming April Fool's Day event \ on April 1st. This update includes data for the April Fool's Day limited content and login rewards.■Update DetailsAdded data for The…
カブトThe Deerbird has returned, stronger than ever! ✨During the event period, when you try to start a play, the Deerbird will appear with a certain probability to challenge you.If you accept the Deerbird's challenge, you will encounter an…
カブトHello, this is Quesera Games. The 2026 Steam Spring Sale has begun. In this sale, you can find Quesera Games' rhythm games and various DLCs at special prices.\KALPA: Cosmic Symphony Nientum - Op.ZERO \ The best choice to perfectly enjoy…
カブト🌟 A brand-new free Song has been added.1. OSHIKOME☆HEAVEN'S COOKING - かゆき feat.ちょこ2. F℟IEND - D_AAN
カブトGreetings, Star-gazers!We would like to inform you of the details for the KALPA: Cosmic Symphony v2.0.36 hotfix update. \ASIO Device Compatibility Fix: Resolved issues causing crashes or abnormal behavior with certain ASIO devices.Please…
Patch notesHello, We would like to inform you of the details for the KALPA: Cosmic Symphony v2.0.35 hotfix update. \Loading Speed Optimization: Reduced loading times to improve overall gameplay efficiency.Crash Fix: Resolved issues causing…
Patch notes🐺KALPA × Camellia Collaboration!🎩Enjoy Camellia’s music in KALPA! This pack includes 10 Camellia songs. 🌟 Song List:ヒアソビ - Camelliaベースラインやってる？笑 - CamelliaGHOST (Game Edit) - CamelliaCompute It With Some Devilish Alcoholic Steampunk Engines…
カブトWishlist the "Camellia Crossover Pack" now and get notified when it launches 😊
カブト🌑KALPA × Berry Melody Collaboration!Enjoy Berry Melody’s music in KALPA! This pack includes 5 Berry Melody songs and a Profile Icon. 🌟 Song List:1. Bright red hertz - Kagetora. feat. Shabel Tonya2. ЯеИatus - 天束 feat.ぽめ3. HATEN CODE 583…
カブトWishlist the "Berry Melody Crossover Pack" now and get notified when it launches 😊
カブト🌟 A brand-new free Song has been added. 1. Travel Begins - ARForest2. Soulwind - HyuN
カブト🌑KALPA × Notanote Crossover!Enjoy Notanote tracks in KALPA!Includes 3 Notanote tracks and a profile icon.🌟 Song List:1. cybernetic blazar - ああああ2. Daughter of Daedalus - tn-shi3. Innocent white - Kagetora. 🌟 Decorative Items:1. Nota Profile…
カブトWishlist the "Notanote Collaboration Pack" on Steam and get notified on release 😊 Notanote Collaboration Pack Store Page
compact615Hello, Performers.To provide a more stable gameplay experience,the “Ghost Match” feature in the ranking screen will be discontinued starting January 8 at 11:00 (UTC+9).You can continue enjoying ghost play through “Ghost Random Match.”We…
Patch notes🌟 A brand-new free Song has been added.Alice in Misanthrope -厭世アリス- - LeaF
compact615⚡ KALPA × Paradigm: Reboot A Dimension-Crossing CollaborationTwo worlds transcend each other’s paradigms.🌟 Song List:1. Mystical Observer - DJ Myosuke2. Awakening of Civilization - 黒魔3. ma\zo - t+pazolite4. Viyella's Melancholy - Laur5.…
compact615Wishlist the "Paradigm: Reboot Collaboration Pack" on Steam and get notified on release 😊 Don’t miss the moment when the paradigms of two worlds collide! Paradigm: Reboot Collaboration Pack Store Page
compact615Hello, Performers.Bug fixes and improvements have been applied in-game.Please update the game to version 2.0.22 before playing.✅ Fixed an issue where section indicators did not appear in stop–speed change sections✅ Fixed an issue in…
Patch notes🌟The bonus track for Mass Recall Omega has been released!💫 PUPA (GRG REMIX) - モリモリあつし Remixed by ガリガリさむし 🌟New free songs have been added to KALPA: Cosmic Symphony.💫 Libera me - Cranky💫 Hello, Stranger - LhoU💫 Iris - a_hisa🌟New ASTRA…
Patch notesHello, Performers. Here are the details of the latest bug fixes. ✅ Fixed an issue where the Lunatic setting was not applied to Ghosts during Ghost Random Play on Lunatic mode. ✅ Fixed an issue where sound playback could malfunction after…
Patch notes1. Origin Vol.1 DLC has been released. 🌟 Tracklist: 1. Pang Pang Fanfare - Mitsukiyo & seibin 2. Kizuna - RiraN feat. Otokotoa 3. Take Me Beyond - KARUT 4. Light into Heart - Nauts 5. The Evacuation - Planetboom 6. Oblivion Lotus - wa. 7.…
QueseraGamesHello, Performers.This is QueseraGames.For a safe and stable service experience, the ongoing server maintenance will be extended for the following period.We apologize for any inconvenience this may cause.Period: 2025.11.07 18:00~18:30…
Patch notesHello, Performers. This is QueseraGames. To provide a stable and secure service, server maintenance will take place during the period below. Please refer to the schedule before playing. 📅 Period: Nov 7, 2025, 17:00–18:00 (UTC+9)
Patch notes🌑 KALPA × Rotaeno: Two Worlds Meeting on the Same OrbitRotaeno’s spatial immersion meets KALPA’s delicate visuals.As the motion of your fingertips intertwines with the beat, a new rhythm begins.🌟 Song List:1. Maholova - aran2. GALACTIC…
히니📢Notice: Changes to ASTRA Unlock RequirementsHello, Performers.Starting from the update on November 7th, the unlock requirements for **ASTRA** will be changed as follows.This adjustment aims to provide a smoother gameplay experience and…
Patch notes💫Rotaeno Collaboration Coming Soon💫 2025.10.23😘
히니Hello, Players!We would like to inform you of several bug fixes and pattern adjustments applied to the game.✅ Bug Fixes- Fixed an issue where Astra records were not properly displayed in multiplayer mode.- Fixed an occasional issue that…
Patch notes『FREEDOM DiVE↓ 』has been added as a default song in KALPA.
QueseraGames✅ Some game issues have been fixed.- Fixed a bug where the volume of the opening video could not be adjusted - Fixed a bug where the Astra menu on the main screen did not appear under certain conditions - Fixed a bug that prevented entry to…
Patch notes✅Fixed a narrative presentation error in Astra Lucis.
Patch notesHello Performers, We would like to inform you about fixes for certain Chart issues. ✅ Valkyrie 5K Normal, Hard, Cosmos - Fixed an issue where the pre-renewal Chart was included - Due to this fix, records will be reset ✅ Doppelganger 4K…
Patch notesHello Performers, We would like to share the update notes regarding improvements, bug fixes, and Chart adjustments. ✅ Improvements - When the Narrative Production option is enabled in Free Play, the selected skin will now be applied.…
Patch notesHello Performers, Some charts with errors have been corrected. Re:End of a Dream - 5K ASTRA ∀- 5K ASTRA Revenant - 5K ASTRA The Last Page - 5K ASTRA The records for these charts have been reset. Please take note when playing. Thank you.
Patch notes🌟Astra System🌟Story UpdateChapter4 &Final Chapter 🌟New Story TrackAspera Noctis - Kagetora. Astra Lucis - Ice feat. Scarlette Aspera Noctis, Astra Lucis - Kagetora. & Ice feat. Scarlette Orobas - Team Grimoire Solstice - void (Mournfinale)…
QueseraGamesEverything Steam lists as add-on content for this game, newest first. Prices are left out on purpose: the store answers this page in one currency and it is not the reader's.
What Steam runs, and with what. Straight from the app configuration.
| Description | Executable | Arguments | Platform | |
|---|---|---|---|---|
| Launch | KALPA CosmicSymphony.exe | windows 64 |
The folders Steam Cloud syncs. The root is a token Steam uses for a location on your own machine, not a path this page can know.
| Root | Folder | Files |
|---|---|---|
WinAppDataLocalLow | \QueseraGames\KALPA CosmicSymphony\ | * |
It runs on public data and somebody's spare time.
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