Finally: DOOM made using CSS

DOOM rendered entirely in CSS. Every wall, floor, barrel, and imp is a div, positioned in 3D space using CSS transforms.

Every wall, floor, barrel, and imp is a div — DOOM rendered entirely in CSS. Using 3D transforms, CSS math functions, @property, clip-path, anchor positioning, and SVG filters to build a fully playable 3D first-person shooter in the browser without Canvas or WebGL.