| Title | Code | Date | Publisher | System (Setting) |
|---|
 La Bas Chartreuse | | 2018 | Kort'thalis Publishing | The Outer Presence |
| La Recette | | Apr 2021 | Chaosium | Call of Cthulhu (Classic) |
 The Laboratory | MAD08 | 2013 | Fantasy Flight Games | Mansions of Madness |
 The Labyrinth | APU8121 | 2019 | Arc Dream Publishing | Delta Green |
| The Labyrinths of Lunacy * | AHC18 | 2017 | Fantasy Flight Games | Arkham Horror: The Card Game |
| Labyrinths of Madness | | 2013 | Necrotic Gnome | Labyrinth Lord |
| The Lady of Autumn | | 2019 | Golden Goblin Press | Call of Cthulhu (Invictus) |
| The Lair of Dagon * | AHC57 | 2021 | Fantasy Flight Games | Arkham Horror: The Card Game |
| The Lair of Dreams | | Aug 2025 | Chaosium | Call of Cthulhu (Classic) |
| The Lair of Lo'thysss | | Jun 2021 | Chaosium | Call of Cthulhu (Classic) |
| Lambs of a Nameless God | | 2009 | Self Published | CthulhuTech |
| Lambton Worm | | Nov 2021 | Chaosium | Call of Cthulhu (Classic) |
| Lamps for the Lost | | Feb 2026 | Chaosium | Call of Cthulhu (Gaslight) |
| Land of the Rising Dead | | 2003 | Self Published | Call of Cthulhu (Classic) |
| A Land Out Of Time | | 2021 | Petersen Games | Dungeons and Dragons |
 Lands of Mystery * | Hero 20 | 1985 | Hero Games | Call of Cthulhu (Classic), Chill, Daredevils, Justice Inc |
| Lands of the Dark Wicche | | Feb 2021 | Self Published | Dungeons and Dragons, Call of Cthulhu (Dark Ages), GURPS |
| Landscapes of the Lost Soul | FXC-022 | Mar 2025 | Stygian Fox | Call of Cthulhu (Gaslight) |
| Lanterns on the Dock | | 2019 | Micro RPG | Lantern on the Dock |
| A Lark in a Cage | | Dec 2019 | Chaosium | Call of Cthulhu (Gaslight) |
| Last Bus Leaving Arkham | | 2025 | Self Published | Cthulhu Awakens |
| Last Call of Cthulhu | | Oct 2024 | Chaosium | Call of Cthulhu (Now) |
| Last Christmas | | Nov 2022 | Chaosium | Call of Cthulhu (Now) |
| The Last Dance of Lola Montez | | Mar 2024 | Chaosium | Call of Cthulhu (Now) |
| The Last Equation * | | 2011 | Self Published | Call of Cthulhu (Delta Green) |
| The Last Equation | APU8117 | 2018 | Arc Dream Publishing | Delta Green |
| The Last Ferry From Vinalhaven | | Dec 2021 | Chaosium | Call of Cthulhu (Strange Aeons) [1940] |
| The Last Hope | | Sep 2024 | Chaosium | Call of Cthulhu (Now) |
| The Last Hours of the International Space Station | | 2016 | Self Published | Lovecraftesque |
 The Last Province | 1 | Oct 1992 | Last Province Publishing | Call of Cthulhu (Now) |
| The Last Province | 2 | Dec 1992 | Last Province Publishing | Call of Cthulhu (Classic), Call of Cthulhu (Now) |
| The Last Province | 3 | 1993 | Last Province Publishing | Call of Cthulhu (Classic), Call of Cthulhu (Now) |
| The Last Province | 4 | Jun 1993 | Last Province Publishing | Call of Cthulhu (Classic) |
| The Last Province | 5 | Aug 1993 | Last Province Publishing | Call of Cthulhu (Classic) |
| Last Rites | CHA2379 | 1999 | Chaosium | Call of Cthulhu (Classic) |
| Last Things Last | | 2015 | Self Published | Delta Green |
| Last Threads of Sanity | | Sep 2023 | Chaosium | Call of Cthulhu (Classic) |
| The Last Trial | CHA0320 | 2005 | Chaosium | Call of Cthulhu (Strange Aeons) [1730s] |
| The Last Valley | | Jul 2020 | Chaosium | Call of Cthulhu (Gaslight) |
| The Laundry | CB71200 | 2010 | Cubicle 7 | Call of Cthulhu (Laundry) |
| The Laundry Operative's Handbook | CB70801 | Jun 2025 | Cubicle 7 | The Laundry |
| The Laundry Supervisor's Guide | CB70800 | Jun 2025 | Cubicle 7 | The Laundry |
| The Laupher Exposition | | Nov 2024 | Chaosium | Call of Cthulhu (Classic) |
| Law Enforcement Pack 1 | | Oct 2022 | Arc Dream Publishing | Delta Green |
| Law of Effect | | 2000 | Self Published | Delta Green |
| Le Livre Des Fourmis * | PELGT39 | 2014 | Pelgrane Press | Trail of Cthulhu |
| League of Seekers | | 2021 | Feral Games | APOCTHULHU |
| League of Seekers Fate Ltd | | 2019 | Feral Games | Fate of Cthulhu |
| League of Seekers Ltd | | 2019 | Feral Games | Basic Role-Playing |
| Leagues of Cthulhu | TAG20301 | 2017 | Triple Ace Games | Leagues of Adventure |
| Legacies of the Renaissance | CHA0318 | 2005 | Chaosium | Call of Cthulhu (Classic) |
| The Legacy of Arrius Lurco | MRP0009 | 2011 | Miskatonic River Press | Call of Cthulhu (Invictus) |
| The Legacy of Cthulhu | | 2023 | Mind's Vision | The Legacy of Cthulhu |
| The Legacy of Lombard House | | Apr 2023 | Chaosium | Call of Cthulhu (Classic) |
| Legacy of the Reanimator * | CHA6063 | 2016 | Chaosium | Call of Cthulhu (Classic) |
| Legacy of the Weird Hill | | Jun 2024 | Chaosium | Call of Cthulhu (Now) |
| Legends of New Orleans | 10010 | 2015 | Golden Goblin Press | Call of Cthulhu (Classic) |
 Legends of the Necronomicon | CAO1303-1 | 1996 | Chaosium | Mythos |
| Legions of Leng | | 2023 | Darrin Drader Designs | Dungeons and Dragons |
| Legs | | 2013 | Chaosium | Call of Cthulhu (Now) |
| Legs * | | May 2018 | Chaosium | Call of Cthulhu (Now) |
| A Lens of Darkness | H&B1 | 2018 | Stygian Fox | Call of Cthulhu (Gaslight) |
| The Leprechaun | | Aug 2021 | Chaosium | Call of Cthulhu (Classic) |
| Leptis Magna | | Jul 2020 | Chaosium | Call of Cthulhu (Classic) |
| Leroy | | Dec 2023 | Chaosium | Call of Cthulhu (Now) |
 A Letter From Yuggoth | 1 | Mar 2016 | Yaqqothl Press | Call of Cthulhu (Classic) |
| A Letter From Yuggoth | 2 | Apr 2016 | Yaqqothl Press | Call of Cthulhu (Classic) |
| Letters and Notes | | Apr 2025 | Chaosium | Call of Cthulhu (Classic) |
| Letters From the Leagues Volume 1 | TAG20305 | 2020 | Triple Ace Games | Leagues of Adventure |
| Letters From the Leagues Volume 2 | TAG20306 | 2020 | Triple Ace Games | Leagues of Adventure |
| Letters From the Leagues Volume 3 | TAG20307 | 2020 | Triple Ace Games | Leagues of Adventure |
| Letters From the Leagues Volume 4 | TAG20308 | 2021 | Triple Ace Games | Leagues of Adventure |
| Library at Celaeno Map | CW-M05 | 2017 | Petersen Games | Cthulhu Wars |
| License to Summon | CB71205 | 2012 | Cubicle 7 | Call of Cthulhu (Laundry) |
| The Lich | | 2011 | Stardust Publications | Dark Aeons |
| Lie In Wait | | Feb 2022 | Chaosium | Call of Cthulhu (Classic) |
| The Lies of Solace * | | 2015 | Fantasy Flight Games | Arkham Horror |
| Lift the Veil | | 2021 | Ineffable Press | Lift the Veil |
| The Light at the End | | Nov 2021 | Chaosium | Call of Cthulhu (Classic) |
| A Light in Darkness | | Feb 2018 | Chaosium | Call of Cthulhu (WWII) |
| A Light in the Fog * | AHC56 | 2021 | Fantasy Flight Games | Arkham Horror: The Card Game |
| The Light in Their Eyes | | Nov 2024 | Xipe Totec Press | Cthulhu Dark, Trail of Cthulhu, Fear Itself, Delta Green, Call of Cthulhu (Now) |
| Light My Way Home | | Jan 2022 | Chaosium | Call of Cthulhu (Classic) |
| A Light on the Mountain | MUH051199 | 2017 | Modiphius Entertainment | Savage Worlds (Achtung!) |
| The Lightless Beacon | CHA | 2019 | Chaosium | Call of Cthulhu (Classic) |
| Lights in the Trees | | Apr 2024 | Chaosium | Call of Cthulhu (Strange Aeons) [1975] |
| Lights, Camera... Malefaction | YH-C-7A | Apr 2025 | Chaosium | Call of Cthulhu (Now) |
| Lil' Cthulhu | | 2016 | De-Evolution Studios | Lil' Cthulhu |
| The Lilan | | 2010 | Stardust Publications | Dark Aeons |
| The Limehouse Piper | | May 2025 | Chaosium | Call of Cthulhu (Gaslight) |
| Limited | CAO1300-1 | 1996 | Chaosium | Mythos |
 Limited Time Treasure Chest * | | 2017 | Goodman Games | Call of Cthulhu (Classic) |
| Line 4 | | Oct 2025 | Chaosium | Call of Cthulhu (Classic) |
| The Linear Men | | 2020 | Moth-Lands | Cthulhu Deep Green |
| The Lion Sleeps Tonight | | 2000 | Self Published | Call of Cthulhu (WWII) |
| The List of Historical and Fictional Figures Statted for Call of Cthulhu | | Aug 2025 | Chaosium | Call of Cthulhu (Classic) |
| A Little Thing | | 2005 | Self Published | Call of Cthulhu (Classic) |
| Little Torches | | Jan 2020 | Chaosium | Call of Cthulhu (Now) |
| Live Evil | | 2004 | Self Published | Call of Cthulhu (Now) |
| Living Bones | | 2006 | ADP Systems | Call of Cthulhu (Classic) |
| Living Secrets | | Oct 2023 | Chaosium | Call of Cthulhu (Classic) |
| Lo and Behold | | Dec 2025 | Chaosium | Call of Cthulhu (Classic) |
| Lock-in: Five in a Bunker | | Apr 2020 | Chaosium | Call of Cthulhu (Now) |
| The Locksmith | | 2015 | Self Published | Trail of Cthulhu |
| The Log of the Narwhal | | 2007 | Self Published | Call of Cthulhu (Classic) |
| The Log of the Persephone Promo Card * | | 2012 | Fantasy Flight Games | Elder Sign |
| The London Guidebook | CHA2347 | 1996 | Chaosium | Call of Cthulhu (Classic) |
| London on the Shores of Lake Hali | | 2015 | Self Published | Trail of Cthulhu |
| A Lone Collection | | Sep 2023 | Chaosium | Call of Cthulhu (Gaslight) |
| The Long Con | PELGT41 | 2016 | Pelgrane Press | Trail of Cthulhu |
| A Long Day's Night | | Mar 2024 | Chaosium | Call of Cthulhu (Strange Aeons) [1956] |
| Long Night's Moon | | Jul 2021 | Chaosium | Call of Cthulhu (Now) |
| The Longest Night | | Dec 2019 | Chaosium | Call of Cthulhu (Classic) |
| Looking Glass: Hong Kong | PELGN13 | 2017 | Pelgrane Press | Trail of Cthulhu |
| Lord Great Cthulhu | | 2020 | Petersen Games | Planet Apocalypse |
| Lord Karma Has Gone Insane | | 2005 | Self Published | Call of Cthulhu (Dreamlands) |
| The Lord of Nombrecht | cr5301 | May 2023 | Cthulhu Reborn | Cthulhu Eternal |
| Lords By Birthright | | Aug 2021 | Chaosium | Call of Cthulhu (Classic) |
| The Lords of Dagontown | | 2022 | Self Published | Monster of the Week |
| Lords of the Night | | Aug 2023 | Twin Engine Publishing | Cthulhu Eternal |
| Los Hobos and the Kung Fu Ghouls | | Aug 2025 | Chaosium | Call of Cthulhu (Strange Aeons) [1945] |
| Los Hobos and the Wolves of Carcosa | | Mar 2024 | Chaosium | Call of Cthulhu (Classic) |
| Lost and Found | | Jun 2024 | Chaosium | Call of Cthulhu (Classic) |
| The Lost Cell | | 2013 | Self Published | Call of Cthulhu (Delta Green) |
| The Lost Charter | | 2015 | Pleasant Company Games | Ancient Terrible Things |
| Lost City | | Nov 2019 | Chaosium | Call of Cthulhu (Classic) |
| Lost in Cremation | | May 2024 | Chaosium | Call of Cthulhu (Now) |
| Lost in R'lyeh | AG1370 | 2016 | Atlas Games | Lost in R'lyeh |
| Lost in the Lights | 60-NUK01 | 2013 | Sixtystone Press | Call of Cthulhu (Now) |
| Lost in the Lights * | 60-NUK01-01 | 2017 | Sixtystone Press | Call of Cthulhu (Now) |
| Lost in the Stacks | | Sep 2024 | Chaosium | Call of Cthulhu (Strange Aeons) [1947] |
| Lost in Time and Space * | AHC08 | 2017 | Fantasy Flight Games | Arkham Horror: The Card Game |
| The Lost Jewels of Eire | | Mar 2020 | Self Published | GURPS, Broken Compass, Call of Cthulhu (Classic), D6 Adventures |
| Lost Library | | Jan 2025 | Chaosium | Call of Cthulhu (Classic) |
| Lost Light | | Feb 2023 | Chaosium | Call of Cthulhu (Classic) |
| Lost Mines of Weirdhill | | Jun 2024 | Chaosium | Call of Cthulhu (Classic) |
| The Lost Mojo | | 2023 | Miskatonic University Podcast | Call of Cthulhu (Classic) |
| The Lost Photos of the Aldebaran Sect | | Jan 2023 | Chaosium | Call of Cthulhu (Classic) |
| Lost Port Royal | | Sep 2021 | Chaosium | Call of Cthulhu (Strange Aeons) [1692] |
| Lost Rites | CT56 | 2012 | Fantasy Flight Games | Call of Cthulhu LCG |
| Lost Symmetry | | Feb 2020 | Chaosium | Call of Cthulhu (Classic) |
| The Lost Temple of Forgotten Evil | DNH1 | 2016 | Fat Goblin Games | Dungeons and Dragons, OSR |
| The Lost Temple of Forgotten Evil * | DNH1 | 2016 | Fat Goblin Games | Pathfinder |
| The Lost Temple of Forgotten Evil Sidequests | DNH1a | 2016 | Fat Goblin Games | OSR, Dungeons and Dragons |
| The Lost Temple of the Vethalam | | Dec 2022 | Chaosium | Call of Cthulhu (Classic) |
| The Lovecraft Country Holiday Collection | GGP | 2020 | Golden Goblin Press | Call of Cthulhu (Classic) |
| Lovecraft CYOA | | 2015 | Self Published | JumpChain! |
| Lovecraft Fan Fiction Collection Promo Card | | Apr 2016 | Steve Jackson Games | Munchkin |
| Lovecraft Fantasy Gaming Toolkit | PDGLF01 | 2015 | Purple Duck Games | Pathfinder |
| Lovecraft Handbook | | 2017 | Mage Hand Press | Dungeons and Dragons |
| Lovecraft Letter | AEG 5123 | 2017 | Alderac Entertainment Group | Lovecraft Letter |
| Lovecraft Rules * | | 2013 | Self Published | Lovecraft Rules |
| The Lovecraft Tales | | 2023 | Rapsoda Games | The Lovecraft Tales |
| The Lovecraft Variant | | 2023 | Bolt Thrower Press | Tunnels and Trolls |
| Lovecraft's Revenge | 2HW-1085 | 2016 | Two Hour Wargames | Lovecraft's Revenge |
| Lovecraftesque * | | 2016 | Black Armada Games | Lovecraftesque |
| Lovecraftesque * | | 2024 | Black Armada Games | Lovecraftesque |
| Lovecraftesque Cards | | 2016 | Black Armada Games | Lovecraftesque |
| Lovecraftesque: Bare-bones Edition | | 2015 | Black Armada Games | Lovecraftesque |
| Lovecraftian Achievements | | Apr 2021 | Chaosium | Call of Cthulhu (Classic) |
| Lovecraftian Bestiary | BDPCC06 | 2009 | Goodman Games | Dungeons and Dragons |
| Lovecraftian Bestiary | | 2019 | WR Publishing | Dungeons and Dragons |
| Lovecraftian Bestiary 2 | | 2019 | WR Publishing | Dungeons and Dragons |
| Lovecraftian Horror Namer | | 2016 | Ennead Games | None |
| Lovecraftian Horrors | MM3 | 2019 | Mal and Tal Enterprises | Dungeons and Dragons |
| Lovecraftian Mini-Expansion | NX0201 | 2015 | Voodoo Bunny | Incredible Expeditions |
| Lovecraftian Shorts | | 2012 | Self Published | Lovecraftian Shorts |
| Lovecraftian Spells | | 2018 | Wandering Alchemist Games | Dungeons and Dragons |
| Lovecraftian Title Generator | AGN0016 | 2016 | Azukail Games | None |
| Lovecraftian/Paranormal | | 2019 | Inkwell Ideas | None |
| Lover in the Ice | | 2016 | Arc Dream Publishing | Delta Green |
| Lozdra | | 1998 | Self Published | Call of Cthulhu (Classic) |
| Lucie's Dispensation | | Dec 2022 | Chaosium | Call of Cthulhu (Classic) |
| Lullaby | | 2021 | Petersen Games | Dungeons and Dragons |
| The Lunar Eclipse Gala | | Mar 2021 | Chaosium | Call of Cthulhu (Now) |
| The Lunatics Have Taken Over the Asylum | | 2007 | Self Published | Call of Cthulhu (Gaslight) |
| The Lurker at the Threshold Expansion | VA63 | 2010 | Fantasy Flight Games | Arkham Horror |
| Lurker in the Mist | | Nov 2022 | Chaosium | Call of Cthulhu (Classic) |
| The Lurker of Leng | | 2021 | Fire Lizard Games | Call of Cthulhu (Dreamlands) |
| Lurkers in the Dark | | Oct 2024 | Chaosium | Call of Cthulhu (Classic) |
| The Lurking Fear | CYOA01 | 2018 | Death By Mage | Basic Role-Playing |
| Lurking Fears | 0001 | Jan 1990 | Triad Entertainments | Call of Cthulhu (Classic) |
| The Lurking Horror | | | Self Published | Mythos |
| Lux in Tenebras | MRP0006 | 2011 | Miskatonic River Press | Call of Cthulhu (Invictus) |
| Luxtorpeda | | Jul 2022 | Chaosium | Call of Cthulhu (Classic) |