Kernel Hearts

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Gather your allies. Eliminate Angels. Transform into a Magical Girl. Slay god. Kernel Hearts is a Multiplayer Co-Op Roguelike Action RPG about four magical girls and their attempt to save a world that's drowning in ashes

Developer: Ephemera Games
Publisher: Whitethorn Games
Released: 17 Sept 2026
Price: $19.99
Platforms
Steam Deck: Playable
Languages: Japanese +4
Controller: Partial
Series: Whitethorn Games

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Players on Steam, last 48 hours

Updates News

Steam concurrent players, polled every 4 hours. Observed since 22 Oct 2026. As of 21:20 UTC.

Show the numbers

Players of Kernel Hearts, last 48 hours, newest first
Poll	Players
17:22 UTC	22
13:22 UTC	20
09:21 UTC	11
03:19 UTC	34
26 Oct, 21:18 UTC	20
26 Oct, 15:17 UTC	17
26 Oct, 09:15 UTC	11
26 Oct, 03:14 UTC	24

How this is measured

Player counts over time, as we observed them.

Counts people running the game through Steam only. Players on other stores, consoles or launchers are not included.
We poll the busiest games every 15 minutes and quiet ones as rarely as once a month, so a short spike between polls can be missed. Each game shows how often it is polled.
Our player history starts on 19 October 2026. Earlier peaks, including launch peaks, are not in our data.

Source: Steam Web API, ISteamUserStats/GetNumberOfCurrentPlayers. Full methodology

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Month	Average	Change	Change %	Peak
October 2026Oct 2026 (so far)	21	−111	−84.3%	48
September 2026Sept 2026	132	—	—	358

Month	Average	Change	Change %	Peak
October 2026Oct 2026 (so far)	21	−111	−84.3%	48
September 2026Sept 2026	132	—	—	358

Kernel Hearts

Players on Steam, last 48 hours

Kernel Hearts

Players on Steam, last 48 hours

Players By Month

Players By Month