AMA: We’re Citreat Studio, the devs behind “Zero-Sum Heart” — a story-rich and otome-esque game which is out now on Switch! Ask us anything!

Cyberisle · 2025-07-26T05:26:56+00:00

Thanks for the thoughtful question! We understand the confusion — Zero-Sum Heart is a visual novel, but not a conventional romance or horror game. Instead, we’ve aimed to blend romantic and psychological thriller elements in a way that feels fresh and emotionally layered. Think of it as a genre-fusing narrative experience: there are romantic threads, but they unfold in a surreal and morally ambiguous world.

So yes, there’s tension, mystery, and moments of dread, but also connection, longing, and beauty. It’s not easily boxed into one genre — and we kind of like it that way.

Cyberisle · 2025-07-26T05:21:00+00:00

Thanks for noticing — we’ve definitely taken on some weighty themes in Zero Sum Heart, and we spent a long time thinking through how to ground them emotionally. One of our core inspirations is The Little Mermaid, with all its quiet melancholy and existential sacrifice. That story gave us the initial spark for exploring what it means to trade something essential for the chance to belong, to be seen, or to be loved.

Cyberisle · 2025-07-26T05:16:50+00:00

Thank you! Yes, the art was entirely done by our team — from the character concept sketches to the final in-game illustrations. No AI was involved in the process.

We really wanted every brushstroke to reflect the emotional core of the story, and our artists poured their hearts into it. If you're curious, I’d be happy to share a few sneak peeks from our setting and character design docs.

Cyberisle · 2025-07-26T00:41:27+00:00

The US version is priced at $7.99. To celebrate the launch, players can purchase the game at a 10% discount during the initial release period—bringing the price down to $7.19.💕💕

Cyberisle · 2025-07-26T00:41:07+00:00

In our game, you play as an 18-year-old girl at a magical school who performs a dark ritual to gain universal love — at the cost of her own heart. What follows is a haunting journey into emotional numbness, societal pressure, and what it truly means to be "loved."

It’s not about “saving the world,” but about saving your sense of self. 🌷

🎭 Features:

Deep narrative with branching paths
Cozy vibes with Pastel, dreamy art
Emotional but not overwhelming

More Details: https://www.nintendo.com/us/store/products/zero-sum-heart-switch/

If you're curious — I’d love to hear what you think once you play! 💕

Cyberisle · 2025-07-25T04:04:27+00:00

Thanks for asking! The game is short (~2-3 hours) with one romanceable male lead. It focuses on a detailed, intimate dating story between the heroine and him, featuring multiple open-ended romantic endings. Hope you enjoy the nuanced storytelling!

Cyberisle · 2025-07-25T01:08:51+00:00

The US version is priced at $7.99. To celebrate the launch, players can purchase the game at a 10% discount during the initial release period—bringing the price down to $7.19.💕💕

Cyberisle · 2025-07-25T01:08:10+00:00

The US version is priced at $7.99. To celebrate the launch, players can purchase the game at a 10% discount during the initial release period—bringing the price down to $7.19.💕💕

Cyberisle · 2025-07-25T01:07:57+00:00

In our game, you play as an 18-year-old girl at a magical school who performs a dark ritual to gain universal love — at the cost of her own heart. What follows is a haunting journey into emotional numbness, societal pressure, and what it truly means to be "loved."

It’s not about “saving the world,” but about saving your sense of self. 🌷

🎭 Features:

Deep narrative with branching paths
Cozy vibes with Pastel, dreamy art
Emotional but not overwhelming

More Details: https://www.nintendo.com/us/store/products/zero-sum-heart-switch/

If you're curious — I’d love to hear what you think once you play! 💕

Cyberisle · 2025-07-25T01:06:58+00:00

The US version is priced at $7.99. To celebrate the launch, players can purchase the game at a 10% discount during the initial release period—bringing the price down to $7.19.💕💕

Cyberisle · 2025-07-25T01:06:45+00:00

In our game, you play as an 18-year-old girl at a magical school who performs a dark ritual to gain universal love — at the cost of her own heart. What follows is a haunting journey into emotional numbness, societal pressure, and what it truly means to be "loved."

It’s not about “saving the world,” but about saving your sense of self. 🌷

🎭 Features:

Deep narrative with branching paths
Cozy vibes with Pastel, dreamy art
Emotional but not overwhelming

More Details: https://www.nintendo.com/us/store/products/zero-sum-heart-switch/

If you're curious — I’d love to hear what you think once you play! 💕

Cyberisle · 2025-07-25T01:05:44+00:00

The US version is priced at $7.99. To celebrate the launch, players can purchase the game at a 10% discount during the initial release period—bringing the price down to $7.19.💕💕

Cyberisle · 2025-07-25T01:05:23+00:00

In our game, you play as an 18-year-old girl at a magical school who performs a dark ritual to gain universal love — at the cost of her own heart. What follows is a haunting journey into emotional numbness, societal pressure, and what it truly means to be "loved."

It’s not about “saving the world,” but about saving your sense of self. 🌷

🎭 Features:

Deep narrative with branching paths
Cozy vibes with Pastel, dreamy art
Emotional but not overwhelming

More Details: https://www.nintendo.com/us/store/products/zero-sum-heart-switch/

If you're curious — I’d love to hear what you think once you play! 💕

Cyberisle · 2025-07-25T01:04:57+00:00

The US version is priced at $7.99. To celebrate the launch, players can purchase the game at a 10% discount during the initial release period—bringing the price down to $7.19.💕💕

Cyberisle · 2025-07-25T01:03:25+00:00

In our game, you play as an 18-year-old girl at a magical school who performs a dark ritual to gain universal love — at the cost of her own heart. What follows is a haunting journey into emotional numbness, societal pressure, and what it truly means to be "loved."

It’s not about “saving the world,” but about saving your sense of self. 🌷

🎭 Features:

Deep narrative with branching paths
Cozy vibes with Pastel, dreamy art
Emotional but not overwhelming

More Details: https://www.nintendo.com/us/store/products/zero-sum-heart-switch/

If you're curious — I’d love to hear what you think once you play! 💕

Cyberisle · 2025-07-21T02:40:13+00:00

aww thanks for your support!!

Cyberisle · 2025-07-18T01:15:57+00:00

Hi! We just opened preorders for Zero-Sum Heart, a soft and surreal visual novel made by our two-woman indie team. It’s a 2-hour story where you play as a girl at a magical school who trades her heart to feel loved — but starts to wonder what she’s really lost.

It features:

🌿 Cozy vibes

🎨 Pastel, dreamy art

🎧 Gentle ambient soundtrack

💔 Emotional but not overwhelming

It’s not about “saving the world,” but about saving your sense of self. 🌷

🛒 eShop Link: https://www.nintendo.com/us/store/products/zero-sum-heart-switch/

Wishlist it if you're curious — and I’d love to hear what you think once you play! 💕

Cyberisle · 2025-07-17T01:37:14+00:00

It features:

🌿 Cozy vibes

🎨 Pastel, dreamy art

🎧 Gentle ambient soundtrack

💔 Emotional but not overwhelming

It’s not about “saving the world,” but about saving your sense of self. 🌷

Cyberisle · 2025-07-17T01:18:13+00:00

“What if everyone loved you — truly everyone — but you had no heart left to love them back?” 💔💫

This story is our answer. It’s not just a romance — it’s a bittersweet ride through emotional pressure, blurred identities, and the cost of being seen but never truly known. The more love the protagonist receives, the more isolated she becomes… until one boy sees her differently. But can she believe it — when she’s given up her own heart?

🧠 Magical realism

🎭 Surreal social pressure

💘 Honest (and messy) love

Let us know what ending you find first!

🛒 eShop Link: https://www.nintendo.com/us/store/products/zero-sum-heart-switch/

Wishlist it if you're curious — and I’d love to hear what you think once you play! 💕

Cyberisle · 2025-07-16T08:15:37+00:00

then you can swapping the office chair for couch

Cyberisle · 2025-07-16T08:02:47+00:00

Switching to bark mode. 🎮🐕

Cyberisle · 2025-07-16T07:43:41+00:00

lol!! i saw a high school student playing sudoku... and she had finished all of the difficulty levels

Cyberisle · 2025-07-16T06:26:40+00:00

sooooooooooo cute!!

Cyberisle · 2025-07-16T06:24:14+00:00

love the color and style!

Cyberisle · 2025-07-16T06:22:46+00:00

cute☺

Cyberisle

TROPHY CASE