Source code. Referring to the original set of text files written in a computer programming language, which is a collection of files that can be converted from human-readable form to an equivalent computer-executable form. When you buy a game you get the computer-executable form, e.g. the execute file (.exe)

In case of PG2 and PeG it is the computer language C++ (pronounced "see plus plus")

The source code for both these games are owned by Ubi Soft Entertainment, with headquarter located in Montreuil-sous-Bois, France. They have owned it since early 2001, when they brought the Game Studio division of The Learning Company, thereby acquiring some 80 gaming titles, including PG2, PeG and the whole Five-Star Series.

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