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Play Mastermind Online as a stand alone web app.

Mastermind Online

Test your reasoning skills with this simple yet challenging logic puzzle game. Identify the sequence of the colored balls on the top of the screen by creating a series of guesses. Use logical induction to identify and position the balls.

  • A guide at the end of each row of guesses will tell you whether you identified the balls and whether the correct balls are in the right sequence.
  • Choose the difficulty settings for your puzzle on the welcome screen.
  • Get 10 guesses to help you deduce the position of the colored balls. If playing on harder difficulties, you get extra chances.

Overall

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Difficulty

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Play Mastermind Online Game Online

Children and parents can play this mastermind game variation by clicking in the window below.

Alternatively kids and adults can play this online mastermind video game for free as a web application .

Mastermind Online Game for Kids Video Game Play Instructions

How to Play

Guess the secret code based on a series of 4 or more pegs.

  • Starting the Game
    • Select Start Game on the welcome screen to begin.
    • Customize your game on the welcome screen. You have the following available options:
      • Code length (4, 6, and 8 lines)
      • Allow repetitions
    • Select How to Play to learn the rules of the game.
    • Select the enlarge button on the top right corner to switch between full screen and windowed modes.
  • Game Controls
    • Desktop
      • With your mouse, left click to select, move, and navigate.
    • Touchscreen devices
      • Tap on the screen with your fingers to select, move, and navigate.
  • Game Play
    • Difficulty
      • The game determines difficulty based on the number of guesses you can make.
        • The game allows you to guess a pattern of 4, 6, and 8 balls.
        • You can also increase the difficulty via repeating patterns.
      • You can set your preferred difficulty level on the welcome screen before starting the game.
    • Basic rules
      • Determine the identity of the pattern by filling the rows with colored balls.
        • Select a colored ball from the 8-color menu on the bottom row.
        • Select any of the spaces on the currently active row to fill it in. Fill in all the spaces with your guesses.
        • Select check to see how many of the balls you’ve placed correctly.
      • You must guess all of the balls on the final puzzle.
        • You have 10 rows to place in your guesses.
        • If you guessed all the colors correctly before you use up all the provided rows, you win.
        • You lose if you run out of rows to put in guesses.
      • For much harder difficulty levels, you get extra chances.
        • These function as extra rows.
        • Solving for 6 spaces gives you 2 extra chances, while solving for 8 gives you 4 extra chances.
        • Receive an extra 2 chances if you’re solving with repeating patterns.
          • For 4 spaces, get 2.
          • For 6 spaces, get 4.
          • For 8 spaces, get 6.
    • Checking guide
      • The row of balls is represented by a truncated guide of balls forming a square.
      • Once you hit a check, the guide on the right side will show any of 3 kinds of balls. These indicate the status of your guesses.
        • A red ball indicates that you placed a ball in the code that’s in the correct spot.
        • A white ball indicates that you placed a colored ball in the code in an incorrect spot.
        • A blank ball indicates that you placed in an incorrect colored ball.
      • Keep guessing until you get everything correct or you run out of spaces to place in your guesses.
    • Strategy
      • Remember, the guide’s balls do not correspond to the position of the balls on the row.
        • e.g., If you positioned one of the balls correctly, regardless of its position, a red ball will always appear on the top left space on the guide.
        • You will still need to identify which of the balls you placed correctly.
      • Your first goal is to get as many of the balls correctly as you can. This means your first moves should be dedicated to having at least all 4 of the balls be white.
      • Once you get your first red ball, identify where their position would be.
      • Pay attention to your previous moves and use logical deduction to determine the identity and the position of the balls.
      • Take your time. This way, you can make calculated correct guesses, especially
  • Target Audience
    • The game is suited for players who like logic puzzle games.
    • The game has no adult themed content.

Like This Game? Review This Mastermind Code Breaking Logic Puzzle Video Game for Young Girls & Boys

Mastermind Online
3.4 / 5 Editor
{{ reviewsOverall }} / 5 Users (1 vote)
Overall3.8
Design3.2
Fun3.8
Originality2.1
Replayability3.9

Free Online Mastermind Online Video Game for Children & Adults Screenshots

Mastermind Online Game Welcome Screen Screenshot.
Mastermind Online Game How To Play Screenshot.
Mastermind Online Game Start Screenshot.
Mastermind Online Game Complete Screenshot.

Mobile Friendly Cross Browser Support

This game is rendered in mobile-friendly HTML5, so it offers cross-device gameplay. You can play it on mobile devices like Apple iPhones, Google Android powered cell phones from manufactures like Samsung, tablets like the iPad or Kindle Fire, laptops, and Windows-powered desktop computers. All game files are stored locally in your web browser cache. This game works in Apple Safari, Google Chrome, Microsoft Edge, Mozilla Firefox, Opera and other modern web browsers.

Where To? What Next?

This game was published in these categories: Logic. You can visit any of them to select other fun games to play.

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