Derek Yu's deviously difficult roguelike platformer Spelunky is now available as a free download for Mac OS X, thanks to the efforts of developer idyll and the Spelunky fan community.

The unofficial 1.3 update for Spelunky also adds numerous fixes, and converts the game's source code to Game Maker 7 format, in order to make the Mac port possible. Idyll recommends using an application like ControllerMate to add gamepad support for the Mac version, as gamepads do not work natively due to a limitation in Game Maker for Mac.