Pac-Txt

Pac-Txt is a Pac-Man game with a twist. There's no graphics - you only get text! It's kinda like the old Zork games. From Pac-Txt:

You awaken in a large complex, slightly disoriented. Glowing dots hover mouth level near you in every direction. Off in the distance you hear the faint howling of what you can only imagine must be some sort of ghost or several ghosts.

To play, type "forward", "backward", "right", "left" and "eat" for the commands. I hope I did not miss out anything.

(Thanks GeekGod)