The engine is open source; the game data is not. Supply a
GRP you own. It is read here in the browser and
stored in this browser — it is never uploaded.
Drop DUKE3D.GRP hereor click to choose files — .grp, .zip, .con, .def, .art, .map
or stream from a URL
In browser storage
Click the canvas to capture the mouse. Esc releases it.