On the Rain-Slick Precipice of Darkness

Penny Arcade Adventures: On the Rain-Slick Precipice of Darkness: Episode 1 is a video game based on the webcomic Penny Arcade, and the first in the Penny Arcade Adventures series.

Announced on August 25, 2006, the opening day of that year's Penny Arcade Expo, it is a 3D action-adventure that will be distributed episodically several times a year via download.

The game was released on May 21, 2008 on Windows, Mac and Linux for $19.95, and Xbox Live Arcade for. A PlayStation 3 version is planned, but the game's Torque Engine does not currently run on the PS3's hardware.