Hit platformer Spelunky, which recently saw an XBLA release, has now been ported to browsers and is completely free to play.

The port was made possible by the title’s GameMaker engine, which was recently updated with HTML5 functionality.

It took “about three hours” to make, according to web developer Darius Kazemi, who added that the process technically should have required a single click of the mouse "but for a complex game like Spelunky it's a bit harder".

A few issues with the build still exist, which Kazemi hoped to address in the future.