A roguelite deck-building battle game where you gather Monmusu and fight. One run takes 15–60 minutes. Spend the currency you earn from your runs (Prism Gummies) on Training to enjoy the game even more.

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Coming Soon To Early Access

The developers of this game intend to release as a work in progress, developing with the feedback of players.

Note: Games in Early Access are not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more

What the developers have to say:

Why Early Access?

“This is a roguelite card battler in which the combination of 44 characters, 48 skills, and 10 difficulty levels creates a very different experience for every player. As a small development team, there is a limit to how much we can verify through internal testing alone, so we chose Early Access to let many players actually play the game and to polish it based on their feedback. In particular, we plan to raise the game's overall quality in three areas — UI usability, in-game guides, and game balance — while incorporating your input.”

Approximately how long will this game be in Early Access?

“We are planning for around six months. However, the period may be shorter or longer depending on the feedback we receive and how the work of implementing it progresses.”

How is the full version planned to differ from the Early Access version?

“All of the game's core content is already implemented in the Early Access version. For the full version, we plan to improve and expand the following areas based on feedback received during Early Access:

- UI improvements: We plan to refine the screen layout and controls based on feedback from actual play.
- Additional guides: We plan to expand the tutorial and in-game help so that first-time players can understand the rules more easily.
- Balance adjustments: We plan to fine-tune the balance of characters, skills, and difficulty levels based on play data and player feedback.

We are also considering additional content such as new items and facilities, depending on the feedback we receive. Please note that these are our plans as of now, and their content and priority may change as development progresses.”

What is the current state of the Early Access version?

“The Early Access version is fully playable from beginning to end. All major content is already implemented: 5 leaders, 44 recruitable monster girls, 48 skills, 14 Artifacts, 10 difficulty levels (GR0–9), an Endless Mode after clearing the game, and permanent progression that carries over between runs (Artifact purchases and character training). A single run takes roughly 30–60 minutes, and with all difficulty levels and Endless Mode included, there is enough content to keep you playing for a long time. The game supports Japanese, English, Simplified Chinese, Traditional Chinese, and Korean, and includes Steam achievements. Meanwhile, the UI, guides, and game balance are still being improved based on player feedback.”

Will the game be priced differently during and after Early Access?

“At this time, we do not plan to change the price when the game leaves Early Access.”

How are you planning on involving the Community in your development process?

“You can share your opinions, requests, and bug reports through the Steam Community Hub discussions and reviews. The development team will review the feedback we receive and plans to reflect it in UI improvements, additional guides, and balance adjustments. We will also share update details and development progress through Steam news announcements.”
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About This Game

A battle tournament is being held on the island where the Monmusu live.

Become the leader of the Monmusu and aim for victory together with your allies.

Gather allies and triumph over your rivals!

Game Flow 1 [Leader Select]

Choose one of five leaders to fight as. The other four appear as your rivals.

Game Flow 2 [Field Map]

Explore the field, gathering allies and items to prepare for battle.

Game Flow 3 [Battle]

When the time comes, a battle against a rival begins. Win the fight to advance to the next stage.

Game Flow 4 [Run Rewards]

Earn Prism Gummies based on your battle results.

Spend them on Shop purchases or on character Training for permanent power-ups.

Strategy Tip 1 [Check Ally & Enemy Info]

Be sure to check both ally and enemy info! You can see which skills will activate and any power-up effects from statuses.

Strategy Tip 2 [Placement & Fusion]

Generally, units in the front row act sooner, but they risk taking enemy attacks. Choose your placements carefully. You can also stack a card from your hand onto a character to fuse them for a power-up.

Strategy Tip 3 [Item Cards]

Spend the Gold you've gathered to buy Item Cards. Use them on allies to teach skills and more — or use them on enemies for a chance to recruit them.

Strategy Tip 4 [Play to Their Strengths]

Each Monmusu has her own style of fighting, so plan your battle placements and Training to bring out their strengths as you take on the game!

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

AI-generated content is used in the following areas of this game:

- Icons: Some card icon artwork was AI-assisted.
- Localization: All translated text was generated using AI.
- Game balance: Adjustments were guided by AI-based simulation.
- Help / guide / character text: Generated with AI, then edited by the developer.
- Story text: AI was used during early drafting, but nearly all of it has been rewritten by the developer.

System Requirements

    Minimum:
    • Requires a 64-bit processor and operating system
    • OS: Windows10以降 64bit
    • Processor: Intel Core i3-6100 / AMD Ryzen 3 1200 相当
    • Memory: 8 GB RAM
    • Graphics: Intel UHD 630 相当(VRAM 1GB)以上
    • DirectX: Version 11
    • Storage: 2 GB available space
    Recommended:
    • Requires a 64-bit processor and operating system
    • OS: Windows10以降 64bit
    • Processor: Core i5-8400 / Ryzen 5 2600 相当
    • Memory: 8 GB RAM
    • Graphics: GTX 1050 / RX 560 相当
    • DirectX: Version 12
    • Storage: 2 GB available space
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