About Thirty-One
"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 six 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!"
Thirty-One details
Thirty-One is a free Card app for Android with 500+ installs on Google Play. It was released on December 20, 2025 and last updated on February 15, 2026. It requires Android 7.1 or later. The app contains ads.
- Category
- Card
- Installs
- 500+
- Price
- Free
- In-app purchases
- No
- Ads
- Contains ads
- Current version
- 1.0.2
- Requires Android
- 7.1
- Content rating
- Everyone
- Released
- December 20, 2025
- Last updated
- February 15, 2026
What’s new in Thirty-One
Optimized CPU AI and decision-making logic. Fixed a display bug during CPU actions. Improved game flow and pacing.
Version 1.0.2 · Updated February 15, 2026
Alternatives to Thirty-One
Looking for apps like Thirty-One? Here are 6 similar Android apps on Google Play. All of them are free to download.
Card Golf Classic Tour
Classic Golf card game! Swap 6 cards for the lowest score. Play 9 or 18 holes!
Gin Rummy
Limited Time: Japanese Style Rummy. Defeat unique CPUs for 100 points!
Balcony Lab
Collect mutant species! A fresh, casual balcony gardening simulation.
Professional Old Maid
These days, the professional old maid organization was established in Japan.
Fruit Packing & Puzzles
Match fruits (vertical/horizontal) for score. Play 1-3 min single or CPU battle.
SAKU PUYO
Let's make a delicious drink with cup, cover and fruits.
| App | Rating | Price | Installs |
|---|---|---|---|
| Thirty-One | – | Free | 500+ |
| Card Golf Classic Tour | – | Free | 100+ |
| Gin Rummy | – | Free | 500+ |
| Balcony Lab | – | Free | 100+ |
| Professional Old Maid | – | Free | 100+ |
| Fruit Packing & Puzzles | – | Free | 500+ |
| SAKU PUYO | – | Free | 500+ |
