Place, flip, and rule the board. A 3×3 territory card battle. Collect 100+ cards, master their special abilities, and claim victory. Features a 6-chapter story plus a hidden chapter, a HARD mode, CPU matches, and online play (random/ranked/friend). Switch between 2D and 3D boards.

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This game is not yet available on Steam

Planned Release Date: Aug 13, 2026

This game plans to unlock in approximately 3 weeks

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About This Game

Place, flip, and rule the board.

Card Reversi is a territory-control card battle where you and your opponent take turns placing cards on a 3×3 grid, capturing each other's cards by comparing the numbers on adjacent edges. Simple rules meet 100+ cards and a wide range of special abilities — every single move can turn the tide.

■ Easy to Learn, Deep to Master

Each card has a number on each of its four edges. When two cards meet, the higher adjacent number flips the opponent's card to your color. When the board is full, the player with more cards of their color wins.

■ 100+ Cards with Special Abilities

Build your strategy around unique abilities tied to each card's star rank — buffs, debuffs, shields, chain captures, dispels, and more. Construct your very own deck from the cards you collect.

■ A 6-Chapter Story + Hidden Chapter

Dive into a dark-fantasy story woven around the mysterious "Shadow". After clearing the story, HARD mode awaits — and a hidden stage appears once you meet certain conditions.

■ Online Multiplayer

Play via Steam: friend matches, random matchmaking, and ranked matches with rating and leaderboards.

■ 2D / 3D Boards

Switch between the classic 2D view and an immersive 3D board at any time — even mid-match.

■ Supported Languages

日本語 / English / 简体中文 / 한국어

AI Generated Content Disclosure

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

The card illustrations and backgrounds in this game were pre-generated by the developer using image-generation AI (Stable Diffusion / DreamShaper 8), then curated and edited by hand. Text, game logic, music, and fonts are NOT AI-generated. No content is generated by AI during gameplay (pre-generated, fixed assets only).

System Requirements

Windows
macOS
    Minimum:
    • Requires a 64-bit processor and operating system
    • OS: Windows 10 64-bit
    • Processor: Intel Core i3 or AMD equivalent
    • Memory: 2 GB RAM
    • Graphics: OpenGL 3.3 compatible GPU (Intel HD Graphics 4000 or better)
    • Storage: 1 GB available space
    Recommended:
    • Requires a 64-bit processor and operating system
    • OS: Windows 11 64-bit
    • Processor: Intel Core i5 or AMD equivalent
    • Memory: 4 GB RAM
    • Graphics: Dedicated GPU with OpenGL 3.3+ support
    • Storage: 2 GB available space
    Minimum:
    • OS: macOS 11 (Big Sur)
    • Processor: Apple M1 or Intel Core i3
    • Memory: 2 GB RAM
    • Graphics: Metal-compatible GPU (OpenGL 3.3)
    • Storage: 1 GB available space
    Recommended:
    • OS: macOS 13 (Ventura)
    • Processor: Apple M1 or Intel Core i5
    • Memory: 4 GB RAM
    • Graphics: Metal-compatible dedicated GPU
    • Storage: 2 GB available space
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