Tex Murphy: Overseer (1998)

Tex Murphy: Overseer is the adventure game of the 21st century. The client is drop-dead gorgeous. Her father is just plain dead - of an apparent suicide. She's certain he was murdered and is willing to do anything to prove it. Tex Murphy, the P.I., is willing to do almost anything to make rent. The investigation leads Tex into the heart of a dark secret. An elite team of specialists have created something unspeakable. Now each of them are marked for death, and so begins the reign of the Overseer...