Tetris Game Coding Tutorial with HTML5 Canvas
Build a fully playable Tetris game from scratch using Vanilla JavaScript and HTML5 Canvas.
This is a real-world portfolio project that teaches game logic, collision detection, and state management.
Perfect for JavaScript beginners and frontend developers preparing projects for interviews.
📌 What You’ll Build
In this step-by-step tutorial, you’ll create a classic Tetris game that runs entirely in the browser using HTML, CSS, Canvas, and JavaScript.
This project focuses on real game mechanics, not toy examples — making it resume-worthy and portfolio-ready.
🧠 What You’ll Learn
Game loop & rendering with HTML5 Canvas
Tetromino logic and rotations
Collision detection & line clearing
Keyboard controls & game states
Score tracking & game over handling
⏱️ Chapters (Outcome-Based)
00:00 Intro
00:31 Tetris Game Demo
02:04 Project Setup
06:58 JavaScript DOM Setup
08:20 Center Text on Canvas
11:13 Start Game with Keyboard
12:37 What Are Tetrominoes
13:09 Tetromino Shapes & Colors
16:16 Game Board Generation
24:27 Drawing Shapes
28:10 Shape Movement Logic
32:09 Collision Detection
36:06 Merge Tetrominoes
39:47 Line Clear & Score Logic
42:06 Rotate Tetrominoes
45:21 Game Over Logic
48:56 Grid Rendering
51:06 Testing & Outro
📚 Recommended Playlists
🔥 52 JavaScript Projects (Beginner → Advanced) • JavaScript Projects For Beginners To Advance.
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💼 Responsive Portfolio Website • Responsive Personal Portfolio Website
📂 Check out the source code for this project on GitHub!
👉 [https://github.com/codehuntersharath/...]
If you find this project helpful in your JavaScript learning, make sure to ⭐ star the repository to show your support!
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