Q3Edit lets users build and play Quake 3 maps entirely in a web browser

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A developer has created Q3Edit, a browser-based level editor for the classic game Quake 3. The tool offers a Radiant-style interface with support for brush and patch editing, CSG, terrain sculpting, and entity editing. Users can open and save standard .map files directly within the browser environment. Maps built with Q3Edit can be played immediately in the browser through a WebAssembly port of the open-source ioquake3 engine. The project was shared on Hacker News, where it is currently gathering early community attention.

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