There is a place outside of normal existence called the Silhouette Rouge, a place where the conscious and subconscious merge, where the real and unreal are one in the same. The Sarcophagi, creatures lacking memory and identity, are imprisoned within this place. They walk the Silhouette Rouge hoping to divine its secrets for only revelation and enlightenment can grant them release.
Noumenon is a role-playing game of mystery and abstraction. Players assume the roles of the Sarcophagi, strange insect-like creatures trapped within the Silhouette Rouge. During their adventures, players will encounter bizarre entities and explore strange locations. The Silhouette Rouge, Noumenon's setting, is detailed enough to spark the imagination yet open enough to allow customization. In Noumenon, player cooperation is key. Noumenon uses a domino-based task resolution system that enables players to build upon each other's successes.
Noumenon is written for experienced gamers. A definition of role-playing and the basics of story construction are absent from Noumenon. The text also assumes terms such as Gamemaster, NPC, Initiative, etc. to be common knowledge to the reader.