This game is for two players, one plays the demons and the other the human Westerners. The two camps are found in the middle of labyrinthine sewers. The board is built during the course of the game.

Claustrophobia is scenario based, resulting in a high replay value, especially as each camp is played differently...

For the Westerners it is a question of surviving the increasingly violent attacks of the demons. While the light sources are reduced progressively, the demonic troglodytes become increasingly stronger and return in ever increasing numbers!

Of course the human player has to organize their figurines to keep them protected, while using their equipment as well as possible in order to win the scenario!