Infidel is an interactive fiction computer game published by Infocom in 1983. It was written by Patricia Fogleman and Michael Berlyn and was the first in the "Tales of Adventure" line. Due to Infocom's virtual Z-Machine, it was ported to a wide variety of popular computing systems of the day, including the Apple II and Commodore 64. It is Infocom's tenth game.
nfocom intended Infidel to be the first of a "Tales of Adventure" series. Among the feelies in the package are several documents that set up the backstory. The player's character is a self-styled adventurer and fortune hunter. He's bitter because he thinks his boss, Craige, should treat him as a partner instead of an assistant. A call comes in while Craige is out checking equipment: a woman, Rose Ellington, wants to sponsor an expedition to discover the pyramid that her archeologist father never found. Egotistical and greedy for fame, the assistant tells Rose that he's capable of taking the job and decides to cut out Craige altogether.