Celestia, astronomy modeling/analysis software package
Computer program

Description:
Celestia allows its user to perform basic astronomical calculations and examine star charts. It is aimed at astronomy students and amateur astronomers. A person who uses Celestia can stumble upon a set of 'easter eggs' or hidden datasets in the program. Labeled only Example 1, Example 2, the star charts seem to be made up. However, a person who examines the hidden datasets will begin to see recognizable patterns in them, patterns that correspond to the real world. The person will eventually see the patterns in his own life and find themselves able to manipulate them to his advantage. In reality, they are mythos spells in an abstract formula.

Once the person casts his first spell, he will see the star charts in the night sky, drawing closer. He will be able to read the hidden datasets likea book and learn of the true nature of reality.

Obviously, madness and death follows.

AstroLook, a small computer design company put out Celestia several years ago. Shortly afterwards, the company was disbanded and the current whereabouts of its employees and owner are unknown. However, warez groups cracked the copy protection on Celestia and it has been available for download ever since. Delta Green is aware of Celestia and tries its best to delete the program from the Internet. Whenever they think they've eliminated the last copy, someone posts a new copy of it online.