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Geometry Monster

Welcome to the Geometry Monster game tutorial. In this series of articles you will learn how to create a hyper-casual game suitable for mobile devices.

From creating the main character and animating it, through adding controls and collectible objects, to collision detection, tracking the score and having multiple lives. We will also implement multiple scenes including main menu and gameplay, sound effects, and difficulty level that increase over time.

Table Of Contents

  1. Install and setup
  2. Creating the first scene
  3. Introducing main character
  4. Desktop and mobile controls
  5. Adding and moving shapes
  6. Collision detection
  7. Sounds fun
  8. Tracking the score
  9. Adding bombs
  10. More lives
  11. Game over
  12. Main menu
  13. Juice it!

Get the sources

Open the project online or get the sources of the Geometry Monster game containing all the images you need to finish the game, and the old project's json file used to write this tutorial if you'd like to check everything yourself.

Play the game

You can also try the game and play it online right now if you're curious of the gameplay - it can be launched by visiting