Kernel Hearts Character List: Every Magical Girl & Babel Resident Revealed

Kernel Hearts is shaping up to be one of the most anticipated co-op roguelike action RPGs of late 2026, and for players planning their first ascent of the Tower of Babel, the Kernel Hearts character list is the perfect starting point. This Kernel Hearts character list covers every confirmed magical girl, the NPCs of the city of Babel, and the angelic foes you'll face along the way. Developed by Ephemera Games and published by Whitethorn Games, the game casts you and up to three friends as members of the M.A.H.O.U. Unit — four magical girls on a mission to eliminate Angels, transform into their true forms, and slay god himself.

The premise is gloriously over-the-top: a world drowning in ashes, a sentient tower that shifts its layout, and a small cast of survivors holed up in humanity's last city. What sets Kernel Hearts apart is how it blends fast-paced hack-and-slash combat with roguelike progression and a social hub where you bond with NPCs between expeditions. With the game launching on September 17, 2026, and a demo already available, now is the perfect time to get familiar with the cast before you dive in.

Meet the M.A.H.O.U. Unit: The Four Playable Magical Girls

The entire playable roster in Kernel Hearts belongs to the M.A.H.O.U. Unit, described on the official Steam listing as a team of magical girls who act as humanity's last line of defense against purgatory. The community-maintained Kernel Hearts wiki confirms four named members: Fernet, Spika, Laika, and Dolce. These four characters form the core of the Kernel Hearts character list, and each one is designed to be controlled by a different player in online co-op.

At the time of writing, detailed personality profiles and backstories for each girl haven't been fully published by the developer. However, community reports from the official Discord and wiki contributors indicate that each character is intended to bring a distinct visual identity and combat approach to the squad. The Steam page also features a prominent "VERY IMPORTANT DOLCE ANNOUNCEMENT" banner, which strongly suggests Dolce carries extra narrative weight — possibly as the protagonist of the story or the character with the most unique gameplay mechanics. Keep an eye on official channels between now and launch for the full reveal.

The Babel Residents: NPCs of Humanity's Last City

Between expeditions, players return to the city of Babel, located on the outskirts of the Tower. This isn't just a menu screen — it's a living hub described on the official Kernel Hearts website as a cosmopolitan refuge for humanity's last survivors. The official site emphasizes that players will have the chance to socialize and get to know a diverse cast of NPCs here, and the wiki currently lists several key residents.

Known Babel Residents

It's worth noting that "Domain" shows up in two different contexts. The Steam page describes each level as culminating in an intense boss fight against "the domain's guardian," which suggests the term refers to the Tower's regions or floors. The wiki's Domain entry may represent a personified version of the Tower itself, or a mysterious overseer that players will learn more about as they climb. Until the developer confirms more details, treat this entry as one of the game's biggest mysteries.

How the Gift System Works

One of the most interesting mechanics tied to this character list is the gift-giving system. According to official materials, you can interact with the Tower's unique inhabitants and give them gifts to deepen your bond. That means the Babel residents aren't just flavor NPCs — investing in relationships likely unlocks story scenes, gameplay perks, or new customization options for your Unit. If you're a completionist, plan on budgeting time in the hub between runs.

The Angels of the Tower: Enemies and Guardians

No guide to the Kernel Hearts character list would be complete without covering the opposition. In Kernel Hearts, the antagonists are biblical in both scale and design. You'll face angelic creatures on every floor of the Tower of Babel, and the game's early tagline — "One More God Rejected" — makes it clear where the campaign is ultimately headed.

The Steam page describes the combat loop clearly: mix and match attacks, spells, and movement with unique powers during each run to unleash devastating combos, then punch biblical monsters in the face with up to four friends. Each level's guardian boss is the gatekeeper to the next floor, so your team will need solid coordination to progress past them.

How Character Progression Works in Kernel Hearts

Roguelike veterans will feel right at home with the progression loop. After each expedition, your M.A.H.O.U. memory returns to its last backup in a laboratory on the outskirts of the city. There, you spend the rewards from your run to unlock and equip up to 256KB of chips onto your Unit's MAHOU.OS — a customization system that lets you tailor your magical girl to your preferred playstyle.

Key Progression Systems

The transformation mechanic is the standout feature here: you harness the strength of the Tower to dispel the Heavenly Curse from yourself, unleashing a devastating attack on nearby enemies and attaining your true form for a short period. Based on community discussions, this is the game's version of a super mode — the moment where your character stops being a soldier and fully embraces the magical girl fantasy.

Building Your Squad: Co-op Tips for Climbing the Tower

Since Kernel Hearts supports online co-op for up to four players, team composition will be just as important as your chip loadouts. Here are a few practical tips based on the official materials and early community reports:

• Spread your roles across all four girls. With exactly four magical girls in the Kernel Hearts character list, the game is clearly designed around one player per character. Coordinate so your squad has a balanced mix of melee pressure, ranged support, and utility.
• Invest in your MAHOU.OS before pushing deeper. The Steam tags include both "Difficult" and "Roguelite," so spending run rewards on chips before attempting tougher floors is a smart move.
• Save your transformation for boss arenas. Since the magical girl form is temporary, wasting it on a random pack of angels can leave you defenseless. Hold it until a Domain Guardian appears.
• Gift early and gift often. Bonding with Babel residents looks like a long-term investment. Even if the immediate rewards are small, the story payoff will likely be worth it.
• Play with friends on voice chat. The tagline "Punch biblical monsters in the face with up to four friends" says it all — this is a game built for coordinated chaos.

If you're planning to go solo, the Steam listing does confirm single-player support, but the heavy emphasis on online co-op and multiplayer suggests the game is best experienced with a full squad of four.

FAQ: Kernel Hearts Characters Explained

Q: Who are the playable characters in Kernel Hearts? A: The four playable characters are Fernet, Spika, Laika, and Dolce, all members of the M.A.H.O.U. Unit. They are the confirmed playable characters in the current Kernel Hearts character list.

Q: Are there any unlockable characters beyond the four magical girls? A: As of now, no additional playable characters have been officially confirmed. The Babel residents — Creator, Rhea, Tofu, Toke, and Domain — appear to be NPCs tied to the game's social and bonding mechanics rather than playable fighters. That could change after launch, so keep an eye on official announcements.

Q: When does Kernel Hearts release? A: Kernel Hearts is scheduled to release on September 17, 2026. It's developed by Ephemera Games and published by Whitethorn Games, and a playable demo is already available on the official Kernel Hearts Steam page.

Q: How does the gift system affect characters? A: The gift system lets you bond with the Tower's inhabitants in the city of Babel. According to the official site, deepening these bonds is a core feature, and community reports suggest it will unlock additional story content and customization options over time.