Ray Gresko's name is associated with being the main programmer for both Star Wars: Dark Forces and its sequel, Star Wars: Jedi Knight: Dark Forces II. In addition to those titles, he also contributed to Star Wars: DroidWorks and Star Wars: Shadows of the Empire. Gresko's involvement extended to other games from LucasArts, including Wikipedia:Grim Fandango, Outlaws, Wikipedia:Indiana Jones and the Infernal Machine and Full Throttle_.
- " LucasArts Update: The Creation Story " — featured in Star Wars Insider 23
- " LucasArts Update: The Real Characters at LucasArts " — featured in Star Wars Insider 25
- Dark Forces Official Player's Guide