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  "path": "/news/111922-developer-rebuilds-doom-using-only-css-html-turning.html",
  "publishedAt": "2026-04-02T19:15:00.000Z",
  "site": "https://www.techspot.com",
  "tags": [
    "Read Entire Article"
  ],
  "textContent": "\nLeenheer is best known for creating HTML5test.com, the WhichBrowser user-agent parser. He began exploring a CSS-based Doom renderer after completing an earlier experiment that ran the game on an oscilloscope, reusing code to extract map data from the original WAD file.\n\nRead Entire Article\n\n",
  "title": "Developer rebuilds Doom using only CSS and HTML, turning divs into a full 3D game engine"
}