Thirty-One

Card

Free

Thirty-One evolved! Strategize against unique AI rivals in the smoothest play environment yet. Can you score the perfect 31-point Blitz and outsmart the elite CPU Master? "Simple yet deep! The classic card game ”31 (Thirty-One)” is now available as an app! Experience thrilling tactics as you try to get your hand total as close to 31 as possible. The rules are simple, but winning requires real strategy. From beginners to pros, this is the definitive card game for everyone. ◆ Face off against unique rivals! Challenge nine distinct characters, each with their own playstyle: Newbie: A beginner whose unpredictable moves might surprise you. Aggressor: A bold player who loves to ”Knock” early. Tactician: A strategist who calculates maximum efficiency. Stoic: A steady player who prioritizes not losing above all else. CPU Master: The ultimate AI that calculates every probability. ◆ Customize the rules your way! Fine-tune the game settings to match your favorite playstyle: Should Aces (A) count as 11 points? Should Three-of-a-Kind count as 30.5 points? Will you allow ”Blitz” or ”Sweep”? Use your best strategy to defeat the ultimate CPU Master!"

Ratings & Reviews

  • This app hasn’t received enough ratings or reviews to display an overview.

Optimized CPU AI and decision-making logic. Fixed a display bug during CPU actions. Improved game flow and pacing.

Version 1.0.1

The developer, Koichi Iwasaki, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Location
    • Identifiers
    • Usage Data
    • Other Data

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Location
    • Identifiers
    • Usage Data
    • Other Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
  • Koichi Iwasaki
Size
  • 105.7 MB
Category
  • Card
Compatibility
Requires iOS 13.0 or later.
  • iPhone
    Requires iOS 13.0 or later.
  • iPad
    Requires iPadOS 13.0 or later.
  • iPod touch
    Requires iOS 13.0 or later.
Languages
  • English
Age Rating
4+
Copyright
  • © Ko-chan Studio.
  • Developer Website
  • Privacy Policy

    • More by Koichi Iwasaki