Richard “Levelord” Gray, the influential level designer behind memorable maps in Duke Nukem 3D, Quake and Sin, has died at the age of 68.
Gray became known throughout the games industry by his Levelord handle. His path into game development was unusual for the era: he said in a 2016 interview that he did not seriously begin creating maps for games such as Doom until he was 35. Apogee later hired him for the Duke Nukem 3D team when he was in his 40s.
After leaving the team, Gray founded a studio that eventually became Ritual Entertainment. The company went on to work on Quake’s first mission pack, Scourge of Armagon, as well as Sin, Star Trek: Elite Force 2 and Counter-Strike: Condition Zero.
His work remains a useful reminder of how much inventive level design shaped classic first-person shooters. Explore more stories about the medium through RETROCADE’s arcade and gaming news, or browse the store’s arcade machines for hardware inspired by the era.
One of Gray’s most significant contributions came in Scourge of Armagon. Gray created “The Edge of Oblivion,” the third and final secret level in the mission pack. It is often recognised as an early example of the “islands in space” or “platform in the void” format, a style that later became common in games including Unreal Tournament and Quake 3 Arena.
Gray also designed the multiplayer map “Behind Zee Bookcase” in Sin. The map is frequently cited as an early 3D shooter environment designed to make players feel tiny, as if they were mouse-sized explorers moving through a familiar real-world setting. A selection of classic shooter maps can be revisited through RETROCADE’s arcade video collection.
Gray’s name was also attached to one of Duke Nukem 3D’s best-known secrets. Players who used cheats to reach a hidden part of one map discovered the message: “You’re not supposed to be here.”
When asked in 2016 how he expected players to uncover an Easter egg hidden behind cheat access, Gray explained:
“Did we give you the cheat codes to find easily? Then, of course, most all of you would be flying around, seeing what you could break, find easter eggs the easy way … bingo! I gave you an easter egg that you had to cheat to find.”
Tributes from former colleagues
News of Gray’s death prompted tributes from developers who worked with him. Doom co-creator and developer John Romero shared that Gray was “full of life, a gentle soul, and an excellent level designer”, adding that he was called Levelord for good reason.
Apogee Entertainment announced the news on October 13, 2026, describing Gray’s work on Duke Nukem 3D and his influence on players and developers as part of a lasting legacy. Apogee founder Scott Miller remembered Gray as a dedicated, talented and kind colleague, highlighting his work on Duke Nukem 3D and Sin, along with the famous hidden message.
Former Apogee and 3D Realms developer Joe Siegler said he heard about Gray’s death from Gray’s wife. Siegler noted that Gray had dealt with cancer over the years, although no official cause of death has been confirmed.
“We worked together back at Apogee/3DR for a few years mostly on Duke Nukem 3D. Such a fun time in my life. We stayed in touch long after he left to found Ritual.”
Gray is survived by his wife and daughter. His approach to hidden spaces, scale and player discovery helped define a generation of first-person shooter design, leaving ideas that still resonate with arcade fans and game creators. RETROCADE’s arcade parts and controls category offers another way to explore the hardware traditions that keep classic games playable today.
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