A JavaScript port of the SCUMM engine that plays the 1993 Macintosh release of the game, right in your browser.
Pick your own copy of the game. The page accepts the original StuffIt archive (.sit), a .zip, or the files MONKEY1.000, MONKEY1.001 and the Monkey Island application (its resource fork supplies the music instruments).
The game data stays on this device (stored in the browser) and is never uploaded anywhere.