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Game engines

Learn about Unity, Godot, Unreal and their differences.

What Is a Game Engine?

A game engine is software that brings together many essential tools for creating games. It provides ready-made systems for adding visuals, managing sounds, organizing scenes, and running game code.

Game Engine
├── Visuals
├── Audio
├── Physics tools
└── Code and scenes

This means developers do not have to build every basic system from scratch.

Unity, Godot, and Unreal

Unity is a widely used engine for developing games across different platforms and supports C#. Godot is an open-source game engine and can work with languages such as GDScript. Unreal Engine is known especially for its advanced visual features and offers C++ support.

Unity  → C#
Godot  → GDScript
Unreal → C++

Each engine offers different tools and workflows; the choice depends on the needs of the project.

Practice Display the Game Engine

Assign the value Godot to the engine variable and print it using console.log().

Starter code

Player.cs
// Kullanılan oyun motorunu belirt
const engine = "";
// Motor adını ekrana yazdır

Sample solution

Player.cs
// Kullanılan oyun motorunu belirt
const engine = "Godot";
console.log(engine);

Expected output

Godot

Questions and answers

Review the lesson questions together with their answers. To test yourself, solve the lesson interactively.

1 What is the main purpose of a game engine?

  • To produce only game music
  • To require an internet connection
  • To draw characters only
  • To provide ready-made tools for game development Correct answer

Explanation: Game engines bring together many development needs, including visuals, audio, scenes, and code, in one environment.

2 Match the Engine and Programming Language

Question 
const engine = "Unity";
const language = "____";
console.log(language);
Answer 
const engine = "Unity";
const language = "C#";
console.log(language);

Explanation: Unity supports the C# language for game development.

3 Identify the Game Engines

Term Meaning
Unity A game engine that supports C#
Godot An open-source game engine
Unreal Engine Known for its advanced visual features
Oyun motoru Brings development tools together

All lessons in Beginner

1 What is game development?

  1. Intro to game development
  2. Game engines
  3. 2D and 3D games
  4. The game loop
  5. The scene concept
  6. Summary - Game dev fundamentals

2 Unity setup

  1. Installing Unity Hub
  2. Creating your first project
  3. The editor interface
  4. Toolbar and playback
  5. Saving the project
  6. Summary - Unity setup

3 First scene project

  1. Project overview
  2. Camera and light
  3. Your first cube in the scene
  4. Adding a material
  5. Testing in Play mode
  6. Summary - First scene

4 The GameObject concept

  1. What is a GameObject?
  2. Components
  3. The Hierarchy window
  4. Editing with the Inspector
  5. Tags and Layers
  6. Summary - GameObject

5 C# script basics

  1. Your first C# script
  2. using and namespace
  3. Class structure
  4. Variables and types
  5. Output with Debug.Log
  6. Summary - C# basics

6 MonoBehaviour

  1. What is MonoBehaviour?
  2. The Start method
  3. The Update method
  4. Awake vs Start
  5. SerializeField and public
  6. Summary - MonoBehaviour

7 Transform

  1. What is Transform?
  2. Changing position
  3. Moving with Translate
  4. Changing rotation
  5. Local vs world space
  6. Summary - Transform

8 Input

  1. The Input class
  2. Axis input
  3. Mouse input
  4. The new Input System
  5. Movement vector
  6. Summary - Input

9 Physics (Rigidbody/Collider)

  1. What is a Rigidbody?
  2. What is a Collider?
  3. Applying force with AddForce
  4. Collision events
  5. Trigger events
  6. Summary - Physics

10 2D Sprite

  1. What is a Sprite?
  2. SpriteRenderer
  3. Sprite import settings
  4. Sprite sorting
  5. Preparing sprite animation
  6. Summary - 2D Sprite

11 Godot basics

  1. The Godot editor
  2. A new project
  3. The scene tree
  4. The Node concept
  5. Saving the project
  6. Summary - Godot basics

12 GDScript

  1. What is GDScript?
  2. extends and variables
  3. Function definition
  4. Output with print
  5. Type hints
  6. Summary - GDScript

13 Node and Scene

  1. Node2D and Sprite2D
  2. Saving a scene
  3. Scene instance
  4. The _ready method
  5. The _process method
  6. Summary - Node and Scene

14 Beginner final

  1. Challenge 1: Print a score
  2. Challenge 2: Movement vector
  3. Challenge 3: Godot ready
  4. Challenge 4: Collision log
  5. Challenge 5: Final synthesis