How to Build a Simple Puzzle Game in Android Studio: Step-by-Step Guide 2026

Introduction

Building your own game is one of the most exciting and rewarding things you can do as an Android developer. Puzzle games in particular are incredibly popular on the Google Play Store, easy to build, and have great monetization potential. In this guide, you'll learn how to build a simple number puzzle game (like 2048 or a sliding tile puzzle) using Java in Android Studio from scratch in 2026.

What You'll Need

• Android Studio Hedgehog (2023.1.1) or later
• Basic knowledge of Java
• A PC or laptop (Windows, Mac, or Linux)
• An Android emulator or physical Android device for testing

Step 1: Create a New Android Project

1. Open Android Studio and click "New Project"
2. Select "Empty Views Activity"
3. Name your project (e.g., NumberPuzzleGame)
4. Set the package name (e.g., com.yourname.numberpuzzle)
5. Choose Java as the language
6. Set Minimum SDK to API 24 (Android 7.0)
7. Click Finish

Step 2: Design the Game Layout

Open res/layout/activity_main.xml and replace the content with a GridLayout to hold the puzzle tiles:

<GridLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/gridLayout" android:layout_width="match_parent" android:layout_height="match_parent" android:columnCount="4" android:rowCount="4" android:padding="16dp" android:background="#BBADA0"></GridLayout>

You'll also want to add a TextView at the top to display the score, and a Button to restart the game.

Step 3: Create the Game Logic in MainActivity.java

The core game logic involves:

• Initializing a 4x4 grid with all zeros
• Randomly placing two tiles with value 2 or 4 at startup
• Detecting swipe gestures using a GestureDetector
• Moving and merging tiles based on swipe direction
• Updating the score when tiles merge
• Checking for win/lose conditions

Here's the basic structure for detecting swipes in your Activity:

GestureDetector gestureDetector = new GestureDetector(this, new GestureDetector.SimpleOnGestureListener() { private static final int SWIPE_THRESHOLD = 100; private static final int SWIPE_VELOCITY_THRESHOLD = 100; @Override public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) { float diffX = e2.getX() - e1.getX(); float diffY = e2.getY() - e1.getY(); if (Math.abs(diffX) > Math.abs(diffY)) { if (Math.abs(diffX) > SWIPE_THRESHOLD) { if (diffX > 0) moveRight(); else moveLeft(); } } else { if (Math.abs(diffY) > SWIPE_THRESHOLD) { if (diffY > 0) moveDown(); else moveUp(); } } return true; } });

Step 4: Render the Tiles

After each move, clear the GridLayout and redraw all tiles based on the current board state. Assign different background colors to different tile values to make the game visually appealing. For example:

• Tile 2 → Light cream color (#EEE4DA)
• Tile 4 → Slightly darker (#EDE0C8)
• Tile 8 → Orange (#F2B179)
• Tile 16 → Dark orange (#F59563)
• Tile 2048 → Gold (#EDC22E)

Step 5: Add Sound Effects

Sound effects make your puzzle game much more satisfying. Add a simple "merge" sound and a "game over" sound using Android's MediaPlayer class:

MediaPlayer mergeSound = MediaPlayer.create(this, R.raw.merge); mergeSound.start();

Place your .mp3 or .ogg sound files in the res/raw folder.

Step 6: Add a High Score Feature

Use SharedPreferences to save the player's high score between sessions:

SharedPreferences prefs = getSharedPreferences("PuzzleGame", MODE_PRIVATE); int highScore = prefs.getInt("highScore", 0); if (currentScore > highScore) { prefs.edit().putInt("highScore", currentScore).apply(); }

Step 7: Test on an Emulator or Device

Run the app on your emulator (Pixel 6 API 33 recommended) or connect a physical Android phone via USB with developer mode enabled. Test all four swipe directions, verify merging logic, and make sure the game over/win screen appears correctly.

Step 8: Add AdMob Ads and Publish

Once your game is working perfectly, integrate AdMob rewarded ads (show an ad in exchange for continuing after losing) and publish to the Google Play Store. Puzzle games with rewarded ads can generate surprisingly good revenue because players are motivated to watch ads to keep playing.

Conclusion

Building a puzzle game from scratch is one of the best ways to sharpen your Android development skills and create something you can publish and monetize. The puzzle genre is timeless — players love simple, challenging games they can pick up and play anywhere. Once you've built this basic game, you can expand it with animations, themes, leaderboards, and more. Start building today!

Building your own game? Share your progress in the comments!