A free browser game — play it in your browser, no install. Niels Leenheer’s cssDOOM redeployed with Vite and GitHub Pages; original engine by Niels, build and deployment pipeline here.
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Controls: Mouse-look uses the Pointer Lock API, which activates automatically when…
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Open the live demo Source on GitHubI rebuilt Niels Leenheer's cssDOOM ( as a Vite-based static site. Niels Leenheer created the rendering engine, game logic, and CSS techniques described below, based on id Software's DOOM. I added the build and deployment pipeline. is the canonical URL. Cloudflare serves it in front of the GitHub Pages build from .github/workflows/deploy.yml. is the fallback.
A recreation of the original DOOM rendered entirely with CSS. Every wall, floor, sprite, and effect is a styled DOM element positioned in 3D space via CSS transforms and preserve-3d, without or WebGL.
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