This following list includes projects for which Sandy Petersen was the main author, co-author, developer, or producer.
This list is NOT exhaustive, particularly for Chaosium publications as Sandy was involved to some extent in virtually all releases from Chaosium between 1981 and 1988.
Chaosium
Games
· Call of Cthulhu 1981
· Superworld 1982
· Larry Niven’s Ringworld 1984
· Elfquest 1984
· Runequest III 1984
· Hawkmoon 1986
· Ghostbusters 1986
· Stormbringer 3rd edition 1987
· Arkham Horror 1987
Game Supplements
· The Gateway Bestiary 1980
· Cults of Terror 1981
· Griffin Mountain 1981
· Shadows of Yog-Sothoth 1982
· Trollpak 1982
· Borderlands 1982
· Big Rubble 1982
· Cthulhu Companion 1983
· Runequest Companion 1983
· Stormbringer Companion 1983
· Pavis 1983
· Masks of Nyarlathotep 1984
· Ringworld Companion 1984
· Fragments of Fear 1985
· Gods of Glorantha 1985
· Griffin Island 1986
· Land of Ninja 1986
· H. P. Lovecraft’s Dreamlands 1986
· Cthulhu by Gaslight 1986
· Spawn of Azathoth 1986
· Thieves’ World Companion 1986
· The Shattered Isle 1987
· Terror Australis 1987
· Cthulhu Now 1987
· Runequest Monsters 1987
· Glorantha Bestiary 1987
· White Wolf 1987
· Troll Gods 1988
· Into the Troll Realms 1988
· Glorantha: Genertela, Crucible of the Hero Wars 1988
· The Elfquest Companion 1985
· Elf War 1987
· Petersen’s Field Guide to Cthulhu Monsters 1988
· Petersen’s Field Guide to Creatures of the Dreamlands 1989
· Elder Secrets of Glorantha 1989
· Dorastor: Land of Doom 1993
· Petersen’s Abominations 2017
MicroProse Software
· Sid Meier’s Pirates 1989
· Sword of the Samurai 1989
· Command HQ 1990
· Lightspeed 1990
· Sid Meier’s Civilization 1991
· Hyperspeed 1991
· Darklands 1992
id Software
· Doom 1993
· Doom 2 1994
· Hexen 1996
· Quake 1996
· Doom 64 1997
Ensemble Studios
· Age of Empires 1997
· Age of Empires: The Rise of Rome 1998
· Age of Empires II 1999
· Age of Empires II: The Conquerors 2000
· Age of Mythology 2002
· Age of Mythology: The Titans 2003
· Age of Empires III 2005
· Age of Empires III: the Warchiefs 2006
· Halo Wars 2009
Petersen Games
Board Games
· Cthulhu Wars (2015)
o Cthulhu Wars Azathoth 2015
o Cthulhu Wars Opener of the Way 2015
o Cthulhu Wars the Sleeper 2015
o Cthulhu Wars Windwalker 2015
o Cthulhu Wars Dreamlands Map 2015
o Cthulhu Wars Yuggoth Map 2015
o Cthulhu Wars Primeval Map 2015
o Cthulhu Wars Great Old One Pack One 2015
o Cthulhu Wars Great Old One Pack Two 2015
o Cthulhu Wars Great Old One Pack Three 2015
o Cthulhu Wars Dreamlands Surface Monsters 2015
o Cthulhu Wars Dreamlands Underworld Monsters 2015
o Cthulhu Wars High Priests 2015
o Cthulhu Wars Ramsey Campbell Horrors Pack 1 2016
o Cthulhu Wars Ramsey Campbell Horrors Pack 2 2016
o Cthulhu Wars Great Old One Pack Four 2016
o Cthulhu Wars Cosmic Terrors 2016
o Cthulhu Wars the Tcho Tcho 2017
o Cthulhu Wars 6-8 player map pack 2017
o Cthulhu Wars Library at Celaeno Map 2017
o Cthulhu Wars the Ancients 2018
o Cthulhu Wars Beyond Space and Time 2019
o Cthulhu Wars Masks of Nyarlathotep 2019
o Cthulhu Wars Shaggai Map 2019
o Cthulhu Wars Bubastis 2020
o Cthulhu Wars Something About Cats 2020
o Cthulhu Wars Daemon Sultan 2020
· Theomachy The Ancients 2016
· Theomachy the Warrior Gods 2016
o Theomachy New Blood Pack 2016
· Orcs Must Die : Order Edition 2016
· Orcs Must Die: Unchained Edition 2016
o OMD Minion Pack 2016
o OMD Order Heroes 2016
o OMD Unchained Heroes 2016
· Evil High Priest 2018
o The Dark Ritual 2018
o Blood Ceremony 2018
· Glorantha the Gods War 2019
o Gods War Chaos Monsters 2019
o Gods War Cosmic Monsters 2019
o Gods War Dragons 2019
o Gods War Elder Races 2019
o Gods War Empires Box 2019
· 8-Bit Attack 2019
o 8-Bit Attack: Apocalypse 2020
o 8-Bit Attack: Happy Halloween 2020
o 8-Bit Attack: Hyperspeed 2020
o 8-Bit Attack: Mythic Legends 2020
o 8-Bit Attack: Yog-Sothothery 2020
· Planet Apocalypse 2020
o PA Dragon Pack 2020
o PA Pack of the Pit 2020
o PA Power Pack 2020
o PA Void Pack 2020
o PA Nightmare Pack 2022
o PA Pack of the Crypt 2022
· Cthulhu Wars: Duel 2020
· Eternal Adversary 2021
· Dinosaur 1944 2021
· Hyperspace 2021
Roleplaying Material
· Sandy Petersen’s Cthulhu Mythos for Pathfinder 2016
· Sandy Petersen’s Cthulhu Mythos for 5e 2019
· Ghoul Island 2019
· Yig Snake Grandaddy 2020
· Dark Worlds 2020
· The Big Sleep 2021