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Show HN: Q3Edit – Edit and play Quake 3 maps in the browser

I've been building a level editor for Quake 3 that runs entirely in the browser: Radiant-style layout, brush and patch editing, CSG, terrain sculpting, and entity editing. It opens and saves .map file and you can play the maps you build directly in the browser using a webassembly build of ioquake3. Comments URL: https:

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Show HN: Q3Edit – Edit and play Quake 3 maps in the browser
Q3EDIT

Quake III Arena map editor

Open, edit, and save real .map files — brushes, patches, entities, and terrain in a TypeScript + WebGL2 editor, with BSP compilation by id Software's original q3map compiled to WebAssembly. One click launches your compiled map in browser-native ioquake3.

Launch Q3Edit No game files needed — ships with OpenArena assets. Requires WebGL2.

  • 01 Radiant-style four-view UI
  • 02 Brushes, patches, CSG, terrain
  • 03 q3map + ioquake3 in WASM

Real screenshot — the editor running in a browser tab

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