Language or Technology: JavaScript

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TutorialGame DevelopmentJavaScript

Build a 2D Browser Game with JavaScript and HTML Canvas

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You do not need a game engine to start building games. In this tutorial, we will create Star Collector, a complete browser game using HTML, CSS, and JavaScript. The objective is simple: collect 10 yellow stars before the timer runs out, and avoid the red obstacles. Along the way, you will implement keyboard controls, character…

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star-collector/
└── index.html
html
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Star Collector</title>

  <style>
    * {
      box-sizing: border-box;
    }

    body {
      margin: 0;
      padding: 24px;
      background: #101827;
      color: #edf2ff;
      font: 16px/1.5 system-ui, sans-serif;
      text-align: center;
    }

    main {
      max-width: 800px;
      margin: auto;
    }

    canvas {
      display: block;
      width: 100%;
      height: auto;
      background: #18243a;
      border: 2px solid #627698;
      border-radius: 8px;
    }

    canvas:focus-visible {
      outline: 3px solid #67e8f9;
      outline-offset: 4px;
    }
…
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