Pac-Txt
I'm not sure what's more soul-crushing-that someone took the effort to write a web-based Pac-Man text adventure in the style of Zork or that I just spent fifteen minutes ensuring that it adhered to the maze layout perfectly. Regardless, your semi-daily reminder that someone has far too much time on their hands is at the official Pac-Txt site.
Source: Pac-Txt via Kotaku