Who is Sandy Petersen?
Sandy Petersen is one of the most decorated game designers alive, with a career that spans tabletop RPGs, PC shooters, real-time strategy games, and board games. He created Call of Cthulhu for Chaosium in 1981, designed the majority of the levels in Doom and Doom II at id Software, contributed to the Age of Empires franchise at Ensemble Studios, and founded Petersen Games, where he designed Cthulhu Wars. His games have collectively sold over 36 million copies.
That breadth is rare. Most designers make their name in one medium. Sandy made his mark in three, RPGs, video games, and premium board games, and the thread running through all of them is the same: deep systems, a genuine love of Lovecraftian horror, and mechanics that reward players who engage seriously with the game.
How did Sandy Petersen start in game design?
Carl Sanford Joslyn Petersen was born on September 16, 1955, in St. Louis, Missouri. He studied zoology at Brigham Young University and later attended the University of California, Berkeley, where he majored in entomology. The scientific mindset stuck, his game designs tend toward careful ecosystems of rules rather than loose narrative frameworks.
He joined Chaosium as a full-time staff member in 1982, but his first major credit predates that. Call of Cthulhu hit shelves in 1981, and Petersen was its principal author. The game fused H.P. Lovecraft's cosmic horror fiction with a role-playing system built around investigation, dread, and the slow erosion of sanity. It won the Origins Award for Best RPG and eventually earned a spot in the Origins Hall of Fame. Forty-plus years later, it's still in print.
During his Chaosium years he also worked on RuneQuest supplements for Avalon Hill and Games Workshop, co-designed the Ghostbusters RPG for West End Games, and authored the original Arkham Horror board game in 1987. The credits list from that period alone would be a full career for most designers.
Did Sandy Petersen really design most of Doom?
More than most people realize.
id Software hired Petersen in August 1993. During his interview, John Romero asked him to build a level using DoomEd. Romero liked what he saw, and the level from that interview session became E2M6 in the final game. Petersen was fast, a trait id needed badly as the launch deadline closed in. He designed all the maps for Doom's third episode, Inferno, and went on to design 17 of the 32 levels in Doom II, just over half the entire game.
He stayed for The Ultimate Doom in 1995 and then moved into the early R&D phase for Quake. When Quake was reformulated as a first-person shooter in late 1995, the revised storyline went to Petersen, along with seven levels in the final release. He was also credited with naming the Hexen expansion Deathkings of the Dark Citadel.
His design approach in those shooters mirrors what he'd done in tabletop: build spaces that feel inhabited and dangerous. The Inferno episode of Doom has a distinct texture, more claustrophobic, more hostile, that reflects that same instinct for atmosphere over spectacle.
What did Sandy Petersen do after Doom?
He left id Software in June 1997 for Ensemble Studios. Over nearly a decade there, he worked on Age of Empires and its Rise of Rome expansion, Age of Empires II and The Conquerors, Age of Mythology, Age of Empires III, and Halo Wars (2009). The franchise picked up multiple AIAS and DICE awards along the way.
After Ensemble closed in 2009, Petersen taught game design at The Guildhall at SMU. The Lovecraft thread never went away during those years. In 2011 he served as executive producer of The Whisperer in Darkness, a film produced by the H.P. Lovecraft Historical Society in the style of a 1930s black-and-white horror film. By mid-2013 he was ready to build something new.
What is Cthulhu Wars, and why does it matter?
In mid-2013, Petersen launched a Kickstarter for Cthulhu Wars, a premium asymmetric strategy board game set in the world of Lovecraftian cosmic horror. It funded successfully and arrived in 2015. The game puts players in control of rival factions of alien gods, including Great Cthulhu himself, competing to dominate the world before it ends. Each faction plays completely differently, with its own units, spellbooks, and win conditions.
That asymmetry is the signature design move. It's the same instinct Petersen brought to Call of Cthulhu decades earlier: build a system where each participant has a genuinely different experience, a different set of pieces, different goals, a different way to win. Cthulhu Wars has grown into a full ecosystem of expansions, alternate maps, faction packs, and accessories, over 100 items in the collection today.
You can browse the full Cthulhu Wars collection at Petersen Games, including the O4 Edition core game and dozens of expansion packs that open up new factions and maps.
He also designed Hyperspace (2021), a science-fiction asymmetric strategy game that extends the same design philosophy into an original world, along with Planet Apocalypse, Dinosaur 1944, and several other titles under the Petersen Games banner.
What awards has Sandy Petersen earned?
The list is long. Over 70 industry awards across three different publishing categories, RPGs, video games, and board games, which is essentially unmatched in the hobby.
A few markers: inducted into the Origins Game Designer Hall of Fame; won the Gamer's Choice Award for Favorite Designer in 1994 (one person per year, voted by the fan community); Origins Award for Best RPG for Call of Cthulhu; CGW Game of the Year for both Civilization and Doom; AIAS and DICE Awards for the Age of Empires franchise. Call of Cthulhu itself earned a separate Origins Hall of Fame induction.
He's also widely credited as a founding figure of Lovecraftian gaming and as someone who shaped what the Cthulhu Mythos looks like in game form, both in his original tabletop work and in the creatures, factions, and lore he's developed through Petersen Games.
Why does Sandy Petersen's background matter for Petersen Games?
It matters for a simple reason: the games are designed by someone who has been doing this seriously since 1981, across formats most designers never touch.
When Cthulhu Wars gives every faction a distinct playstyle that requires completely different strategic thinking, that's a deliberate design decision with decades behind it. The asymmetry in the Call of Cthulhu RPG, where the investigators and the cosmic horrors operate by entirely different rules, maps directly onto the board game's structure. When the miniatures are built to dominate a table, that's the same instinct for presence and atmosphere Petersen brought to the level design of Inferno.
The pedigree isn't marketing. It's the reason the games work the way they do.
Frequently Asked Questions
What games did Sandy Petersen design?
Sandy Petersen designed Call of Cthulhu (1981), contributed level design to Doom (1993), Doom II (1994), and Quake (1996), worked on the Age of Empires franchise at Ensemble Studios, and founded Petersen Games where he designed Cthulhu Wars (2015) and Hyperspace (2021).
Did Sandy Petersen work on Doom?
Yes. He joined id Software in August 1993 and designed all the maps for Doom's third episode plus 17 of the 32 levels in Doom II. He also contributed the revised storyline and seven levels to Quake.
Did Sandy Petersen create Call of Cthulhu?
Yes. Petersen is the principal author of Call of Cthulhu, the horror role-playing game published by Chaosium in 1981. It's the most awarded and most imitated horror RPG ever made.
What is Petersen Games?
Petersen Games is the tabletop company Sandy Petersen founded. It's best known for Cthulhu Wars, a premium asymmetric strategy game, along with Hyperspace and a broad catalog of expansions and RPG supplements.
What awards has Sandy Petersen won?
Petersen has earned over 70 industry awards. He's in the Origins Game Designer Hall of Fame, won the Gamer's Choice Award for Favorite Designer in 1994, and has collected Origins, AIAS, CGW, DICE, and GameSpot awards across RPG, board game, and video game categories.
Where can I find Sandy Petersen's games?
If you want to see what 40-plus years of serious game design looks like in physical form, the Cthulhu Wars collection is the place to start. The O4 Edition core game and the full ecosystem of faction expansions, map packs, and accessories are available directly from Petersen Games.
It's a collector's game. Premium miniatures, asymmetric factions, and a design sensibility built by someone who's been thinking seriously about how games work since before most of the hobby was born.
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