Penny Arcade's On the Rain-Slick Precipice of Darkness 3 is now available on Steam, offering the culmination of the webcomic-based episodic series that at one time looked like it might never be developed. The game is only USD $4.99 so in lieu of an introductory sale, they are offering giftable copies of Cthulhu Saves the World and Breath of Death VII to those who buy their copy by July 2nd. Here's word:

The Startling Developments Detective Agency springs into action as On the Rain-Slick Precipice of Darkness 3 begins, set in motion by a call from a mysterious source. The ever escalating perils on the Rain-Slick Precipice of Darkness will season our tender heroes to their very core! Expect cunning evil doctors, a series of unexplainable thefts, a mysterious book of power, enigmatic supernatural forces, hoboids, roboids, time travelling dinosaurs, and more!