Diamond Memories ~Japanese High School Baseball Manager~
Become the manager of Japanese high school baseball team. Develop your players and build the team to conquer the national tournament.

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Planned Release Date: To be announced

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About This Game

Lead your high school team to the top of Japan.

Develop your players, manage games, scout new players, and reach for the sky.

"Diamond Memories"

3,800+ High Schools. Only One Stands at the Top.

Choose a school to lead to glory from over 3,800 fictional schools, allocated according to the scale of each region in Japan.

Of course, you can also create your own school. Create where to start. and dive into your journey toward glory.

Realistic Japanese High School Baseball Tournament System

Round-robins, linked system, and double elimination.

Thoroughly researched and implemented regional qualifier formats for each district.

From district qualifiers to prefectural tournaments, regional tournaments, and the national championship.

Keep your high hopes, and never stop challenging.

  • March: Spring National Tournament

  • March–April: Spring District Qualifiers

  • April–May: Spring Prefectural Tournament

  • May: Spring Regional Tournament

  • July: Summer Prefectural Tournament

  • August: Summer National Tournament

  • September–October: Autumn District Qualifiers

  • October: Autumn Prefectural Tournament, Autumn Regional Tournament, National Sports Festival

  • November: Autumn National Tournament

The Baseball World is Moving Even at This Moment

Curious about the news in other regions? Subscribe to the news from other regions and pro-level leagues.

Training, Team Management, Investment, and Scouting — Design the Present and Future of Your Team

⚾ Keep in mind that time and resources are limited.

Will you invest time in understanding your players' personalities, or prioritize one more practice session today?

Or will you focus on studying for the upcoming final exams? Everything is up to the manager's decision.

Don't forget you must pay attention to your students' academics to secure better career paths for them.

Assign tasks to your student managers. Decide whether they should focus on supporting the players' training, or handling administrative work for facility investments.

⚾ Winter is Another Competition

Choose whether to focus on developing your players to prepare for next spring, or concentrate on discovering new talents.

Through a phased scouting system starting in July, observe promising middle schoolers to scout your future ace pitcher.

⚾ Set Your Team's Direction and Design the Future

Adjust your "Team Policy" and determine the direction of your team.

Will you create a Spartan baseball team alive with high-intensity training and strict discipline, or a team centered on autonomy? Will you become a prestigious powerhouse that attracts students from all over the country, or a local overlord that gathers the region's talented players?

⚾ Personality Traits & Relationships

Bring the team together. Each player has unique personality traits and interpersonal relationships.

Team leaders will emerge, seniors and juniors will help each other out, and close friends will form cliques.

Sometimes, relationships between cliques can deteriorate and escalate into conflicts.

Interview players, get help from your managers to understand their personalities and relationships, and bring the team together as one.

⚾ Every Decision Matters

Assigning tournament rosters, handing out uniform numbers... Every decision affects the players.

Dive into the daily life of a high school baseball team.

Realistic Graduates Career System

Aren't you curious about what your former ace would become when he graduates? Or what kind of mark they will leave in the pro baseball?

Guide your students' career path as they step up to become professional players, head to university, or corporate league(Shakaijin).

⚾ The Success of Alumni Elevates the Team's Reputation

Graduates follow a realistic baseball career cycle. While some players go straight to the pros, others play in university level, while some join a corporate club before making their way to the pros. Some of them continue their dreams in independent leagues.

Graduation is not the end. Track players from your school in the first year player draft held every October.

The more successful your graduates become, the more your school's reputation grow.

Alumni who have finished their careers sometimes return to the school. Becoming coaches to train their juniors at their alma mater.

Fully Simulated Japanese Professional Baseball League

This game fully simulates Japanese professional level baseball league. Which makes statistics of your school's graduates "actual in-game performance."

They climb through the ladder, become an all-star, eventually becoming a future American baseball league player.

Match Engine Based on Physics 

The match engine was designed to focus on implementing realistic baseball.

Individual plays are not simply the outcome of probabilities calculated by player stats. The pitcher throws every single pitch, the batter hits that ball, the fielder chases the batted ball, and the runner judges whether to advance.

Every play is influenced by calculations applying the laws of physics. Pitch locations, defensive shifts, and detailed offensive tactics. Enjoy "Another Baseball" unfolding right on your screen.

Adjustable Difficulty Options

The reputation tier of the school you choose acts as a difficulty option by itself.

However, for players who want to write a "drama of an underdog high school conquering the nation," The game provides separate difficulty options alongside team selection. Choose your desired level of challenge and write down your very own story.

Build Your Own Japanese Baseball World

Freely modify the database. From high school names, reputations to college leagues, college names, and professional team names. Create your very own Japanese baseball world.

AI Generated Content Disclosure

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

This game has been developed using AI programming agents, and also contains audio and image files generated by AI. No AI contents are generated during gameplay.

System Requirements

    Minimum:
    • OS: Windows 11 64 bit
    • Processor: 64 bit
    • Memory: 2 GB RAM
    • Graphics: OpenGL 3.1 or newer, 512MB GPU
    • Storage: 3 GB available space
    Recommended:
    • OS: Windows 11 64 bit
    • Processor: 64 bit
    • Memory: 4 GB RAM
    • Graphics: OpenGL 3.1 or newer, 512MB GPU
    • Storage: 15 GB available space
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