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Cover of Game Development with Godot 4: A First Course: a smiling green frog holding a golden key behind a wooden desk.

Game Development with Godot 4: A First Course

From your first node to a finished point-and-click adventure with Popochiu.

Learn Godot properly, then make a point-and-click adventure: rooms, hotspots, inventory puzzles, dialogue and a boss fight, all in one running example.

Read free online PDF 16 MB

Free. No sign-up. Unofficial guide, Edition 1 (2026). The book is also on GitHub.

What you will learn

  • Godot 4 and GDScript from the ground up
  • 2D basics, physics, user interface, animation, audio and saving
  • Installing Popochiu and how it is built
  • Rooms, characters, props, hotspots, inventory and puzzles
  • Dialogue trees, cutscenes, mini-games and a boss fight
  • Polish, testing and exporting your adventure

Who it is for

Beginners who want to make point-and-click adventures with the Popochiu plugin.

What is inside

  • Every code block was run and checked: zero errors
  • Appendices: GDScript reference, shortcuts, an error-message dictionary, answers, glossary, and the full Weird Hotel script listings

Contents

Every chapter opens in your browser. Pick one to start reading.

  1. Preface

Part I: Foundations

  1. Chapter 1Game Engines and Godot
  2. Chapter 2The Editor, Nodes, and Scenes
  3. Chapter 3GDScript I: Variables, Types, and the Life of a Script
  4. Chapter 4GDScript II: Decisions, Loops, Functions, and Collections
  5. Chapter 5GDScript III: Classes, Signals, and Autoloads

Part II: Making 2D Games

  1. Chapter 62D Basics and Input
  2. Chapter 7Physics and Collisions
  3. Chapter 8User Interface
  4. Chapter 9Animation and Audio
  5. Chapter 10Resources and Saving
  6. Chapter 11Professional Habits

Part III: Point-and-Click Adventures with Popochiu

  1. Chapter 12Adventure Game Design
  2. Chapter 13Installing Popochiu and How It Is Built
  3. Chapter 14Rooms, Characters, Props and Hotspots
  4. Chapter 15Inventory, Puzzles, and State
  5. Chapter 16Dialogue Trees and Cutscenes
  6. Chapter 17Mini-games and the Boss Fight
  7. Chapter 18Saving, Polish, Testing and Export

Appendices

  1. Appendix AGDScript 4 Quick Reference
  2. Appendix BGodot Editor Shortcuts and Tips
  3. Appendix CTroubleshooting and Error-Message Dictionary
  4. Appendix DAnswers to Review Questions
  5. Appendix EGlossary
  6. Appendix FWorking with Claude Code as a Tutor
  7. Appendix GWeird Hotel Complete Script Listings

These books are free, no strings. If you would like to say thanks, you can buy me a coffee.