A demo version of Davey Wreden's first-person interactive short story The Stanley Parable is out now on Steam ahead of the full version's scheduled launch on October 17.

Built on a Half-Life 2 mod project from 2011, The Stanley Parable is a brief, narrated experience that reflects on player choice and free will within an office setting. The demo version serves up a unique story with original content not featured in the full game, making it worth a playthrough for fans of the original mod.

This article was originally published on Joystiq.