How to Make a Maze Game in Scratch: Complete Step-by-Step Guide

Reading Time: 9 mins

Creating a maze game in Scratch is one of the most exciting and educational projects for young programmers. Whether youโ€™re a parent looking to introduce your child to coding or a teacher seeking engaging STEM activities, this comprehensive tutorial will guide you through building an interactive maze game from scratch. With Scratchโ€™s intuitive drag-and-drop interface, youโ€™ll discover how block-based programming makes coding accessible and fun for beginners of all ages.

Table of Contents

What Youโ€™ll Learn

By completing this Scratch maze tutorial, youโ€™ll master essential programming concepts that form the foundation of game development. Sprites are the characters or objects that perform actions, Events are triggers that start a sequence of actions, Motion blocks control the movement of sprites, Conditionals check if certain conditions are true, and Loops repeat a sequence of instructions. These fundamental concepts will prepare you for more advanced programming languages and projects.

Key Programming Skills Youโ€™ll Develop:

  • Event-driven programming: Understanding how user inputs trigger game actions
  • Collision detection: Creating boundaries and interactive elements
  • Sprite management: Controlling multiple characters and objects
  • Game logic: Implementing win conditions and level progression
  • Problem-solving: Debugging code and optimizing performance

Getting Started with Scratch

Scratch is a free programming language and online community where you can create your own interactive stories, games, and animations. Developed by MIT Media Lab, Scratch 3.0 offers enhanced features perfect for maze game creation.

To begin your maze game project:

  1. Visit the Official Website: Navigate to scratch.mit.edu and create a free account
  2. Choose Your Development Environment: You can work online through the web browser or download Scratch Desktop for offline coding
  3. Explore the Interface: Familiarize yourself with the stage, sprite area, and code blocks panel

Pro Tip: Make sure to jot down the URL of your Scratch project in progress. Itโ€™s a lifesaver when youโ€™re ready to dive back in.

Setting Up Your Maze Project

Before diving into coding, proper planning ensures a smoother development process. Plan your game by deciding on the main theme and elements you want to include.

Step 1: Creating Your Character Sprites

The first step is setting up your character sprites. Based on our project, youโ€™ll need two costumes for your main character.

Costume 1
Costume 2

Creating Your Player Sprite:

  1. Delete the Default Cat: Remove Scratchโ€™s default cat sprite if you want a different character
  2. Choose Your Character: Click the sprite icon and select from Scratchโ€™s library or upload your own image
  3. Create Multiple Costumes: Add costume1 and costume2 for animation effects
  4. Size Adjustment: Ensure your character sprite fits comfortably within maze pathways
  5. Starting Position: Place the sprite at the maze entrance

Programming Movement Controls

Now comes the exciting partโ€”bringing your maze game to life through code! Motion blocks (Blue): These blocks allow you to control the movement of a sprite (character) on the stage.

Step 2: Understanding Motion Blocks

The Motion blocks panel includes essential commands for character movement:

  • move (10) steps: Moves the sprite forward
  • turn CW (15) degrees: Rotates the sprite clockwise
  • go to random position: Teleports sprite to random location
  • go to x: (-240) y: (-47): Moves to specific coordinates
  • glide (1) secs to random position: Smooth movement animation
  • point in direction (90): Sets sprite direction
  • point towards (mouse-pointer): Sprite follows mouse
  • change x by (10): Horizontal position adjustment
  • set x to (-240): Set exact horizontal position
  • if on edge, bounce: Boundary collision handling
  • set rotation style [left-right]: Controls sprite rotation behavior

Basic Movement Script Implementation

Start by adding a forever loop and two if statements. We want to check if the up arrow key is pressed, and then change the y position by 2.

scratch
When [green flag] clicked
Forever
  If <key [up arrow] pressed?> then
    Change y by [5]
  End
  If <key [down arrow] pressed?> then
    Change y by [-5]
  End
  If <key [left arrow] pressed?> then
    Change x by [-5]
  End
  If <key [right arrow] pressed?> then
    Change x by [5]
  End
End

Adding Visual and Audio Effects

Step 3: Implementing Looks Blocks

The Looks blocks control how your sprite appears on screen:

  • say [Hello!] for (2) seconds: Display speech bubbles
  • think [Hmmโ€ฆ] for (2) seconds: Show thought bubbles
  • switch costume to (costume2): Change sprite appearance
  • next costume: Cycle through available costumes
  • switch backdrop to (light): Change stage background
  • change size by (10): Adjust sprite size
  • set size to (100) %: Set exact sprite size
  • change color effect by (25): Apply color filters
  • show/hide: Control sprite visibility
  • go to (front) layer: Manage sprite layering

Step 4: Adding Sound Effects

Sound blocks (Pink): These blocks allow you to play sounds or add music in your program. Essential sound commands include:

  • play sound (meow) until done: Play complete sound
  • start sound (meow): Begin sound playback
  • stop all sounds: Halt all audio
  • change pitch effect by (10): Modify sound pitch
  • set pitch effect to (100): Set exact pitch value
  • clear sound effects: Remove audio modifications
  • change volume by (-10): Adjust audio volume
  • set volume to (100) %: Set exact volume level

Event Handling and Game Control

Step 5: Setting Up Events

Events blocks are blocks that control events and the triggering of scripts. Key event blocks include:

  • when flag clicked: Game start trigger
  • when (space) key pressed: Keyboard input detection
  • when this sprite clicked: Mouse click detection
  • when backdrop switches to (light): Background change trigger
  • when (loudness) > (10): Audio level trigger
  • when I receive (next maze): Message broadcasting
  • broadcast (next maze): Send messages between sprites
  • broadcast (next maze) and wait: Send message and pause

Step 6: Control Flow Management

Control blocks are blocks that control the flow of your program, such as by repeating a section of code, having code wait before running, or stopping the program.

Essential control blocks:

  • wait (1) seconds: Pause execution
  • repeat (10): Loop specific number of times
  • forever: Infinite loop
  • if () then: Conditional execution
  • if () then else: Conditional with alternative
  • wait until (): Conditional pause
  • repeat until (): Conditional loop
  • stop (all): Terminate all scripts
  • when I start as a clone: Clone initialization
  • create clone of (myself): Duplicate sprites
  • delete this clone: Remove clone instances

Implementing Collision Detection

Step 7: Sensing and Interaction

To check if the sprite is touching the walls, use a โ€œtouching colourโ€ block and the eyedropper tool to choose what colour to check for.

Critical sensing blocks for maze games:

  • touching (mouse-pointer)?: Mouse collision detection
  • touching color ?: Color-based collision
  • color () is touching ()?: Advanced color detection
  • distance to (mouse-pointer): Proximity measurement
  • ask [Whatโ€™s your name?] and wait: User input collection
  • answer: Retrieve user input
  • key (space) pressed?: Keyboard state detection
  • mouse down?: Mouse button status
  • mouse x/y: Cursor position tracking
  • set drag mode (draggable): Enable sprite dragging

Collision Detection Implementation

scratch
If <key [up arrow] pressed?> then
  Change y by [5]
  If <touching color [#000000]?> then
    Change y by [-5]
  End
End

Important: Make sure each if-statement has the exact same colour! Use the color picker tool to select the exact wall color from your maze backdrop.

Advanced Programming Techniques

Step 8: Mathematical Operations

Operators blocks are the blocks that perform math functions and string handling. Key operators include:

  • () + (): Addition
  • () โ€“ (): Subtraction
  • () * (): Multiplication
  • () / (): Division
  • pick random (1) to (10): Random number generation
  • () < (), () = (), () > (): Comparison operators
  • () and (), () or (), not (): Logical operators
  • join (apple) (banana): String concatenation
  • letter (1) of (apple): Character extraction
  • length of (apple): String length
  • () contains ()?: String search
  • () mod (): Modulo operation
  • round (), abs () of (): Mathematical functions

Step 9: Drawing and Visual Effects

Pen blocks enable creative visual effects:

  • erase all: Clear all drawings
  • stamp: Leave sprite impression
  • pen down/up: Control drawing state
  • set pen color to (): Change drawing color
  • change pen (color) by (10): Adjust color properties
  • set pen (color) to (50): Set exact color values
  • change pen size by (1): Modify line thickness
  • set pen size to (1): Set exact line width

Complete Code Structure

Step 10: Main Game Script

The Maze Runner game has a sprite for the player, the maze, and the apple at the end of the maze. Hereโ€™s the complete main game logic:

Final Game Setup

Step 11: Stage and Sprite Arrangement

The final setup includes:

  • Maze Backdrop: Black walls forming the maze structure with white pathways
  • Player Sprite: Orange cat character positioned at the start
  • Goal Object: Apple sprite placed at the maze exit
  • Proper Scaling: All sprites sized appropriately for smooth navigation

Creating Multiple Levels

Next, try increasing the number of mazes. Just draw your favorite mazes as costumes, naming them like โ€œMaze3,โ€ and youโ€™re set.

Level Progression System:

  1. Create multiple backdrop costumes with different maze designs
  2. Implement level switching when player reaches the goal
  3. Increase difficulty with each subsequent level
  4. Add visual variety with different themes and colors
scratch
when I receive [level complete]
switch backdrop to [next backdrop]
go to x: [start x] y: [start y]
change [level] by [1]
say [Level Complete! Starting Level] join [level]

Advanced Features and Customization

Timer System Implementation

Add time pressure to increase excitement:

scratch
when [green flag] clicked
set [time] to [60]
repeat until <[time] = [0]>
  wait [1] seconds
  change [time] by [-1]
end
broadcast [time up]

Scoring Mechanism

Reward players for efficient maze solving:

  • Time Bonus: Extra points for quick completion
  • Exploration Penalty: Slight point reduction for backtracking
  • Collectible Rewards: Hidden items worth bonus points
  • Perfect Run Multiplier: Double points for no wall collisions

Power-Up Features

These customizations can make the maze game more engaging and personalized.

Introduce temporary abilities:

  • Speed Boost: Temporary faster movement
  • Ghost Mode: Brief ability to pass through walls
  • Map Reveal: Temporary display of the entire maze
  • Time Extension: Additional seconds for level completion

Testing and Debugging

If your Scratch program doesnโ€™t work and you donโ€™t know how to fix it, you can start over by using the maze-part-c.sb2 Scratch project file. Thorough testing ensures a polished gaming experience.

Common Issues and Solutions

Character Sticks to Walls:

  • Check collision detection logic
  • Verify wall color consistency
  • Adjust movement step size

Inconsistent Movement:

  • Review key press detection
  • Check for overlapping scripts
  • Verify sprite positioning code

Performance Problems:

  • Reduce script complexity in loops
  • Optimize collision detection
  • Minimize visual effects

Beta Testing Process

  1. Self-Testing: Play through all levels multiple times
  2. Peer Review: Have friends or classmates test your game
  3. Feedback Collection: Document suggestions and issues
  4. Iterative Improvement: Implement fixes and enhancements
  5. Final Polish: Add finishing touches and extra features

Tips for Success

Best Practices for Maze Game Development

If youโ€™re a beginner, keep the maze design simple. Start with a few straight paths and avoid overly complex dead ends. You can always add complexity later.

Development Guidelines:

  • Plan Before Coding: Sketch your maze layout and game flow before starting
  • Test Frequently: Run your game after each major addition
  • Use Comments: Add notes to your code blocks explaining their purpose
  • Start Simple: Begin with basic functionality, then add advanced features
  • Save Regularly: Keep backup copies of your working project

Learning Resources

Expand your Scratch skills with these educational opportunities:

  • Official Scratch Tutorials: MIT provides comprehensive learning materials
  • Online Coding Classes: Structured courses with expert instruction
  • YouTube Channels: Free video tutorials covering advanced techniques
  • Scratch Community Forums: Connect with other young programmers
  • Local Coding Clubs: Find in-person programming groups for kids

Creative Variations

Once youโ€™ve mastered basic maze creation, try these exciting variations:

  • 3D-Style Maze: Use costume changes to simulate depth
  • Multiplayer Maze: Two players race to reach the goal
  • Puzzle Maze: Include riddles or math problems at checkpoints
  • Themed Adventures: Create story-driven maze experiences
  • Educational Content: Incorporate learning objectives like math or science facts

Building Programming Skills

Your maze game project teaches transferable skills valuable for future programming:

  • Logical Thinking: Breaking complex problems into manageable steps
  • Debugging Skills: Identifying and fixing code issues systematically
  • User Experience Design: Creating intuitive and enjoyable interactions
  • Project Management: Planning, implementing, and completing coding projects
  • Creative Problem Solving: Finding innovative solutions to technical challenges

Conclusion

Congratulations on completing this comprehensive guide to creating a maze game in Scratch! Youโ€™ve learned essential programming concepts including sprite control, collision detection, event handling, and game design principles. Coding a maze helps learn about loops, collision detection, and events while testing memory, problem-solving skills, and patience.

Your maze game represents more than just a fun projectโ€”itโ€™s evidence of your growing programming abilities and creative problem-solving skills. Whether youโ€™re continuing with more advanced Scratch projects like how to make a clicker game on Scratch or exploring other programming languages, the foundational skills youโ€™ve developed will serve you well.

Ready for Your Next Challenge? Explore our collection of Scratch coding tutorials to continue building your programming expertise. From creating a music player in Scratch to building a platformer game, thereโ€™s always a new coding adventure waiting!

Additional Project Ideas:

Remember, every expert programmer started with simple projects like your maze game. Keep experimenting, learning, and most importantly, having fun with code. The skills youโ€™re developing today will open doors to exciting future opportunities in technology, game development, and creative problem-solving.

Share your maze game creations with friends and familyโ€”youโ€™ve earned the right to be proud of your programming accomplishment!


Project Link: https://scratch.mit.edu/projects/11710850

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Sandhya Ramakrishnan

Sandhya Ramakrishnan is a STEM enthusiast with several years of teaching experience. She is a passionate teacher, and educates parents about the importance of early STEM education to build a successful career. According to her, "As a parent, we need to find out what works best for your child, and making the right choices should start from an early age". Sandhya's diverse skill set and commitment to promoting STEM education make her a valuable resource for both students and parents.

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