Build Tetris in JavaScript

Published: 21 October 2025
on channel: Devowski
1,541
55

Step-by-Step Tetris Tutorial in Vanilla JavaScript & Canvas API. Theory & Explanation, then Coding from Scratch.

🕹️ PLAY IT: https://devowski.tech/tetris-js
💻 GITHUB: https://github.com/devowski256/tetris-js

0:00 Introduction
1:54 Game Loop
4:10 More Theory
8:03 Code: Start
13:37 Code: Game State
17:50 Code: Render
22:43 Code: Inputs
24:35 Code: Update
37:30 Code: Throttle Inputs
40:00 Final result


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