The AGOS Engine is based on AberMUD V, with graphical extensions and used in the following games: Elvira - Mistress of the Darkness Elvira 2 - The Jaws of Cerberus Elvira 3 - Waxworks Simon the Sorcerer Simon the Sorcerer 2 The Feeble Files
The source code for AberMUD V is available.
The Acorn and PC versions of Simon the Sorcerer are supported. The Amiga, Macintosh and PC versions of Simon the Sorcerer 2 are support.
We have recently obtained the source code for The Feeble Files.