Steam now offers the first episode of Batman - The Telltale Series for free for a limited time, through November 7th (thanks Ant). They are clearly hoping this will inspire sales of the full five-episode series, and it is currently on sale for 15% off. Here's the pitch on the game:

Enter the fractured psyche of Bruce Wayne and discover the powerful and far-reaching consequences of your choices as the Dark Knight.

In this gritty and violent new story from the award-winning creators of The Walking Dead – A Telltale Games Series, you'll make discoveries that will shatter Bruce Wayne's world, and the already fragile stability of a corrupt Gotham City.

Your actions and your choices will determine the fate of the Batman.