A role-playing story game featuring Penny Arcade comic characters

Penny Arcade Adventures (Precipice of Darkness) is a RPG game with turn-based combat, slight horror elements comedy, and mystery solving. The transition from 2D drawings to 3D characters is tactfully done, which is in stark contrast to other examples such as the early South Park and Simpsons console games. Sadly, the game is the first part of a series and the series was never finished, so it is not a game suitable for completionist players.