Penny Arcade's On the Rain-Slick Precipice of Darkness 3 has been knocked down to $3 this week, two bucks off the usual price. You can grab it now on Steam.
In other Rain-Slick news, the mobile version will be shown at PAX in space S4 of the South Lobby. The mobile version is headed to both iOS and Android this October. The Mac version is slated for October as well.