Koshien Baseball

Experience a dramatic high school baseball simulation! Train unique players bursting with personality!

# Game Outline

My lifelong passion for baseball games inspired me to create this high school baseball simulation, built around the most exciting concepts I've always loved.

Our goal is to develop players as distinctive and memorable as the heroes in famous baseball manga.

The game offers a well-balanced experience in hitting, defense, and player growth, regardless of your development strategy.

I wanted to capture the thrill of a game-winning hit with epic background music and dramatic voice lines to amp up the excitement.

This game brings all those ideas to life.

Step into the role of a high school baseball team manager and nurture uniquely talented players—like a pitcher with an uncontrollable breaking ball but an unstoppable fastball—as you battle to win the prefectural tournament and conquer the national championship at Koshien.

This is a "dramatic high school baseball simulation" designed for players who enjoy pure strategy and development, with no gacha mechanics.

# How to play

Direct your players' training to develop their skills.

Fielders train in contact, power, speed, defense, and intelligence, while pitchers work on fastball, breaking balls, control, and stamina.

Craft a personalized development plan that fits each player's unique traits.

Your players are full of character, and their journeys feature intense storylines like these.

A gifted pitcher overcomes the yips to rediscover his genius!

A complete beginner (all G-rank skills) trains relentlessly in batting to earn a starting spot by his junior year summer!

Furthermore, game balance has been refined using data from our development community, so there's no single "must-follow" strategy for success.

(We've incorporated extensive feedback from dedicated players to eliminate any guaranteed winning formulas.)

So, discover your own approach to training and build a team of standout individuals.

Training progresses month by month, with Koshien qualifiers in July and September. Win the qualifiers to advance to the national tournament.

Before each game, set your lineup and batting order.

During games, you call the shots as the coach.

Issue commands for bunts, stolen bases, squeeze plays, hit-and-runs, and more.

Tactical decisions matter down to the details—like positioning fielders based on runners on first or second to cut off grounders through the gap.

To visualize this, we include animations for ball trajectory and defensive plays.

When the pressure mounts or a big opportunity arises, your teammates' passionate cheers fill the screen, and dramatic cut-ins with decisive lines intensifiy the action.

True to high school baseball, seniors retire after the summer tournament.

We're also developing a "User Koshien" feature (not in the current version) where players can pit their teams against others in tournament play, using team data saved just before third-year players graduate.

We plan to host official User Koshien tournaments as well.

# Report a request or problem

You can submit feedback or report issues anytime by clicking the "Report" button on the left edge of the screen.

As a solo developer, responses may sometimes be delayed, but every request and bug report you send directly informs the game's development.

Previously released on Windows, this game has evolved over the years based on player input (with over 100 user requests implemented to date).

# Windows version

A Windows version of this game is also available.

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Koshien Baseball Screenshots