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Paper Baseball
Guess the secret number. Beat the AI. A classic Bulls & Cows deduction game with 3 or 4-digit modes, three difficulty levels, and a sharp AI opponent. Simple rules, deep strategy

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Features
Single-player
Steam Achievements
Family Sharing
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Languages:
Interface Full Audio Subtitles
English ✔
Japanese ✔
Korean ✔
Includes 10 Steam Achievements
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all 10

Play Paper Baseball

Free
 

About This Game

Paper Baseball is a 1v1 number deduction game based on the classic Bulls & Cows ruleset.

You and the AI take turns guessing each other's secret numbers using Strike/Ball feedback. Crack your opponent's number in fewer turns to win!

How to Play

  • Strike – Right digit, right position

  • Ball – Right digit, wrong position

  • Out – Digit not in the number at all

Game Modes

  • 3-Digit Mode – Quick, light matches

  • 4-Digit Mode – The classic experience with deeper strategy

Difficulty

  • Easy – Confirmed strike positions are revealed as a hint

  • Normal – Standard rules, fair and balanced

  • Hard – The AI plays optimally using a minimax algorithm; duplicate digits allowed

Stats & Achievements Track your win rate, best clear turns, and total playtime. Unlock achievements to prove your mastery.

AI Generated Content Disclosure

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

Some visual assets in this game were created with the assistance of AI image generation tools.

System Requirements

    Minimum:
    • Requires a 64-bit processor and operating system
    • OS: Windows 10 (64-bit)
    • Processor: 1 GHz dual-cor
    • Memory: 512 MB RAM
    • Graphics: OpenGL 3.3 compatible
    • Storage: 200 MB available space
    Recommended:
    • Requires a 64-bit processor and operating system
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