Hakoniwa Base Ball is a full-featured baseball simulation game inspired by Japanese professional baseball.

Scout and draft promising rookies, strengthen your roster through free agency, and negotiate contracts face to face. Simulate games instantly or watch them unfold pitch by pitch — the choice is yours. Build a dynasty and experience the thrill of watching your players shine, season after season.

Fully customize your league structure, team count, and season length. Play a Japanese-style league, recreate the KBO, CPBL, or go full MLB scale — it's your call.

Features:

League structure inspired by Japanese professional baseball

Watch every game on full auto, or call every shot yourself — it's up to you!

Draft, free agency, trades, and development player system

Sign contracts all at once, or negotiate one by one while reviewing each player's stats.

Team budget, sponsorship, and stadium management

The key to securing funds: ticket pricing and adding more seats.

Fully customizable leagues, teams, and season format

From your own original rules to recreating real-world leagues — play it your way.

Available in Japanese, English, Korean, and Traditional Chinese

Built in Japanese, available in four languages. Spot an odd translation? Let me know!

From the developer

Built by a solo developer. The features I set out to make are all in — this launches as a complete game.

I'll keep updating it after release, at a steady solo pace, based on your feedback.