Phantasmagoria (other titles: Roberta Williams' Phantasmagoria) is an adventure game released in 1995 by Sierra On-Line. The game was released for PC (DOS / Windows), Macintosh and Sega Saturn.

The writer Adrienne Delaney with her husband photographer Donald moved to the old mansion. Shortly after the introduction, Adrienne begins to experience terrifying nightmares and meets strange characters in this old house. What's more, the house has a serious impact on her husband, turning him into worse. Adrienne must uncover the secret of the house before the unknown force consumes her husband and unravels the terrible events that have occurred in the past.