Dead Like Ants is the only game I know of that uses cylindrical coordinates rather than compass directions, which is logical when the protagonist is an ant living in a tree. More interesting than the physical environment, however, is the social environment of an (anthropomorphic) ant colony, with its lack of individualism. If ant colonies produced literature, it might look like Dead Like Ants.
The game is short and polished, and combines atmosphere and message into an enjoyable package. The gameplay, however, is definitely on the slight side: it consists mostly of exploration, but the exploration becomes predictable rather quickly. Nevertheless, it is recommended.