Skip to content
0
Kernel Hearts cover art

Game · Whitethorn Games

Kernel Hearts

SteamEurope and UK. Activates on accounts registered in 32 countries: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, United Kingdom.
  • Co-op

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

Before you buy

Redeem on
Steam clientPC: Windows. Needs a free Steam account.
Activates in
Europe and UK. Activates on accounts registered in 32 countries: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, United Kingdom.Activates on accounts registered in the EU, EEA, Switzerland and the United Kingdom.Will not activate on accounts registered in North America, Asia, Latin America or Oceania.
You get
A digital activation keyStandard edition. No disc, no box.
Delivery
To your account and by emailDelivered to your account and by email once it is ready. Some orders get a short manual check first.

Trailers and screenshots

01 / 10 Trailer

Kernel Hearts

Trailer 1 of 2

About this game

Kernel Hearts is a unique blend of action RPG and roguelike elements with multiplayer co-op. As part of the M.A.H.O.U Unit, you are tasked with climbing the Tower of Babel, eliminating the angelic creatures in your path as you dethrone God and save a world drowning in ashes.

ONE MORE GOD REJECTED


Mix and match your attacks, spells, and movement with unique powers during each run to unleash devastating combos on the enemies you encounter.
Punch biblical monsters in the face with up to four friends. Each level culminates in an intense boss fight against the domain's guardian

EQUIP & CUSTOMIZE YOUR UNITS


After each expedition, you will return to the last memory backup in a laboratory located on the outskirts of humanity's last holdout.
Spend the rewards from each run to unlock and equip up to 256KB of chips onto your Unit MAHOU.OS, and customize them as you see fit.

TRANSFORM INTO A MAGICAL GIRL


Harness the strength of the tower to dispel the Heavenly Curse from yourself, unleashing a devastating attack on nearby foes and attaining your true form for a short period.

BOND WITH YOUR ALLIES


Interact with the tower's unique inhabitants and give them gifts to deepen your bond.

Description, images and details are taken from this product's Steam page.

Details

Developer
Ephemera Games
Publisher
Whitethorn Games
Released
17 Sep, 2026
Genres
Action, RPG, Multiplayer/MMO, Indie
Runs on
Windows
Activates on
Steam client, Europe and UK
Interface
English, Japanese, Spanish - Latin America, Simplified Chinese, Traditional Chinese
Full audio
Japanese
  • Single-player
  • Multi-player
  • Co-op
  • Online Co-op
  • Cross-Platform Multiplayer
  • Steam Achievements
  • Camera Comfort
  • Custom Volume Controls
  • Adjustable Difficulty
  • Gamepad Recommended
  • DualShock Controller Support
  • DualShock Controller Support
  • DualSense Controller Support
  • DualSense Controller Support
  • Stereo Sound
  • Surround Sound
  • Partial Controller Support
  • Steam Cloud
  • Family Sharing

System requirements

Windows

  • Requires a 64-bit processor and operating system
Kernel Hearts system requirements on Windows
ComponentMinimumRecommended
OSWindows 10 or AboveWindows 10 or Above
ProcessorIntel Core i7-9750H @ 2.60GHz or equivalentIntel Core i7-10700 / AMD Ryzen 5 3600 or equivalent
Memory8 GB RAM16 GB RAM
GraphicsNVIDIA GeForce GTX 1060 or equivalentNVIDIA GeForce RTX 2060 / GTX 1660 Ti or equivalent
Storage15 GB available space15 GB available space
Additional NotesMinimum specs target 1080p gameplay on Low/Medium settings. Performance may vary during online co-op.

Activating it on Steam client

  1. Open the Steam client and sign in.
  2. Choose Games in the top menu, then Activate a Product on Steam.
  3. Paste the key and confirm. It appears in your library.

The key is listed for the Europe and UK. Activates on accounts registered in 32 countries: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, United Kingdom. region. Read how regions work before you buy.

Kernel Hearts€21.93