TrumpJack: 21 Online Card Game

Contains adsIn-app purchases
Content rating
Teen
10+
Downloads
Content rating
Teen
Simulated Gambling
In-Game Purchases
Learn more
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About this game

TrumpJack is a strategic 21 card game where every draw matters.

Play online against your opponent, get as close to 21 as possible without going over, and use powerful Trump Cards to change the course of the game.

Both players draw from the same unique deck, so every card you take affects what remains available. Every decision matters, from the cards you choose to draw to the perfect moment to play a Trump Card.

šŸƒ Strategic 21 Gameplay

The goal is simple: get as close to 21 as possible without exceeding it.

Cards range from 1 to 11, but there are no duplicate cards in the shared deck. Because both players use the same deck, every draw changes the possibilities for the rest of the round.

Do you take another card and risk going over, or play it safe and let your opponent make the next move?

šŸŽ“ 27 Unique Trump Cards

TrumpJack's biggest twist is its collection of 27 unique Trump Cards.

Each Trump Card has its own effect and can completely change the situation on the table. Use them to disrupt your opponent, improve your own position, create new opportunities, or turn a losing round around.

The right card at the right moment can make all the difference.

🌐 Online Multiplayer

Challenge your opponent in online matches and put your strategy to the test.

Read the cards that have already been played, consider what might still be in the shared deck, and try to predict your opponent's next move.

Every match can unfold differently depending on the cards drawn and the decisions made.

ā™ ļø Classic Mode

Prefer the core experience?

Classic Mode focuses on the fundamental 21 card gameplay without the added complexity of Trump Cards.

Manage your cards, judge the risk of each draw, and try to reach 21 without going over.

🧠 Strategy Over Luck

TrumpJack combines familiar 21 card rules with a shared deck and powerful special cards.

Watch the cards.
Track what has been played.
Manage your risk.
Outthink your opponent.
Play your Trump Cards at the right time.

šŸŽ® Features

• Online multiplayer card game
• Strategic 21 card gameplay
• Shared unique deck
• No duplicate cards in play
• 27 unique Trump Cards
• Special cards with game-changing effects
• Classic Mode
• Dynamic rounds
• Strategic card management
• Competitive gameplay

Can you master the shared deck, outplay your opponent, and become the ultimate TrumpJack champion?

TrumpJack. Play your cards right.
A strategic 21 card game with shared decks and 27 unique Trump Cards
Updated on
May 19, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Location, Personal info and 2 others
  • This app may collect these data types
    Personal info, Financial info and 2 others
  • Data is encrypted in transit
  • You can request that data be deleted

What’s new

TrumpJack - v15.0 is Live! šŸŽ‰
šŸ”„ What’s New in v15.0:

āœ… Android 16 Support: Fully optimized for the latest Android OS
šŸž Bug Fixes: Fixed some minor bugs.
šŸ”’ Important Security Patch Applied.
āœ… Added Leaderboard.
āœ… Fixed Profile Picture Update.