Here's a first cut very incomplete list of Pulp RPGs and sourcebooks, those both in and out of print. (Note: these need to be categorized under the above headers)

This list is comprised mainly of adventure pulps, it could also be extended with more gangster pulp, horror pulp, SF pulp sub-genres.

Current Games

• 1948: Signals LARP Campaign
• Action Tales (Trusty Fedora Productions) Hero Pulp Rules
  
• Adventure! (White Wolf) Hero Pulp - Rules
  • Yahoo Group: Adventure! discussion
  • Yahoo Group: Aeon Adventure! discussion
  • Yahoo Group: Aeon Continuum Community
• Adventures & Expeditions by Gaslight (Chris Johnston) Victorian Pulp - Rules
• Adventures in Science (Thousandpress) Hero Pulp - Rules
• Against the Reich! (Memento Mori - for octaNe)
• Astounding Tales! Pulp Miniatures Rules
  

• Call of Cthulhu (Chaosium) Horror Pulp - Rules
  • Quick Start Rules
  • Pulp Cthulhu - Due Winter 2007
  • Delta Green 1939-1945
• Crimson Skies (Microsoft/FASA)
• Crimson Skies Universe
• D20 Pulp Heroes (d20 Mini-Game) (Dungeon #90/Polyhedron #149, updated in Dungeon #102/Polyhedron #161 with a city Setting, Northport) Hero Pulp - Rules
  • Thrilling Adventures Web Page (Tim Hartin)
  • Wide World Adventure GM's Notebook (J.G. White)
  • Pulp Heroes Compiliation: home brew spin off from the above game
  • Yahoo Group: Pulp d20
• Daredevils (FGU) Hero Pulp - Rules
  • Daredevil Adventures: Black Claws (FGU) Adventures - included
  • Daredevil Adventures: Deadly Coins (FGU) Adventures
  • Daredevil Adventures: The Menace Beneath the Sea (FGU) Adventures
  • Daredevil Adventures: Supernatural Thrillers (FGU) Adventures
  • Daredevil Adventures: Lost World Tales (FGU) Adventures
• Dime Heroes (Deep7) [for 1PG] Hero Pulp - Rules (Collection includes supplements Jungle Adventures, Aviator's Handbook, and Magic and Mysticism)
  • Jungle Adventures (Deep7)
  • The Aviator's Handbook
  • Magic and Mysticism
• Fearless Pulp Adventure (Joe Coleman) Hero Pulp - Rules
  • Fearless - Mystery System
  • Fearless Fudge
  • Fearless Elegant
  • Secret Worlds - Oracle System
  • Congress of Justice

• Forgotten Futures (Marcus L. Rowland) Victorian Pulp
  • Forgotten Futures I - The A.B.C. Files, Kipling (Marcus L. Rowland) Sourcebook
  • Forgotten Futures II - The Log of the Astronef, George Griffith (Marcus L. Rowland) Sourcebook
  • Forgotten Futures III - George E. Challenger's Mysterious World (Marcus L. Rowland) Sourcebook
  • Forgotten Futures IV - The Carnacki Cylinders, William Hope Hodgson's Ghost Detective (Marcus L. Rowland) Sourcebook
  • Forgotten Futures V - Goodbye Piccadilly, The Destruction, Modification, and Transformation of London, as Depicted by Various Eminent Authors and Learned Men in the Late Nineteenth and Early Twentieth Centuries (Marcus L. Rowland) Sourcebook
  • Forgotten Futures VI - Victorian Villainy (Marcus L. Rowland) Source book
  • Forgotten Futures VII - Tsar Wars (Marcus L. Rowland) Sourcebook
  • Forgotten Futures VIII - Fables and Frolics (Marcus L. Rowland) Sourcebook
  • Forgotten Futures IX - It's My Own Invention... (Marcus L. Rowland) Sourcebook

• Forbidden Kingdoms d20 (Otherworld Creations) Hero Pulp - Rules
  • Paris: The Spectral City (Otherworld Creations) Sourcebook

• Gangster! (FGU) Pulp Noir - Rules
  • Patrol Guide and Laws of the Land (FGU) Sourcebook - included
• Gear Krieg RPG Pulp War - Rules
  • Pulp Krieg-- Home brew rules for Pulp-themed campaign using Gear Krieg rules
• Golden Hero Pulp d20 Sourcebook (Pisces All Media) Hero Pulp - Sourcebook
• Grim Tales (Bad Axe Games) Pulp Adventure, Conan-Style
• Gurps Cliffhangers, 1st ed (Steve Jackson Games) Hero Pulp - Sourcebook
  • Chaos in Kansas (Steve Jackson Games) Adventure
• Gurps Cliffhangers, 2nd ed (Steve Jackson Games) Hero Pulp - Sourcebook
• Hollow Earth Expedition (Exile Game Studio)

• Justice Inc ( Hero Games) Hero Pulp - Rules -- UPDATE: Reimagined as Pulp Hero
  • Justice Inc Campaign Book (Hero Games) Sourcebook - included
  • Lands of Mystery (Hero Games) Sourcebook
  • Trail of the Gold Spike (Hero Games) Adventure
  • Hands of the Strangler (Adventurers Club #10) Adventure
  • Empire Club Home Page] Campaign Setting
• Legacy of Justice: The Pulp Era Pulp Supplement from Big Finger Games for Mutants and Masterminds
• Lost in Smaragdis -- Pulp-style science fiction adventure RPG
  
• Mercenaries, Spies, & Private Eyes (Flying Buffalo) Hero & Noir Pulp - Rules
  • Stormhaven (Flying Buffalo) Adventure & Setting
  • The Adventure of the Jade Jaguar (Flying Buffalo) Solo Adventure
  • Mugshots 1: The Case of the Pacific Clipper (Flying Buffalo) Adventure

• Pulp Adventures (Iron Crown Enterprises) Hero Pulp - Sourcebook
  • Feng Shui conversion for ICE's Pulp Adventures]

• Pulp Cthulhlu (Chaosium) -- See the Entry for Call of Cthulhu, above
• Pulp Era (Chapter 13 Press) Hero Pulp - Rules
• Pulp Hero (HeroGames) -- Formerly Justice, Inc.
  • Masterminds and Madmen
  • Astounding Hero Tales -- release imminent
  • Thrilling Places -- Locales for pulp gaming
    
  • Pulp Resource Guide-- release mid 2006
  • Lands of Mystery-- releaselate 2007
  • Shades of Black
  • Spears of the Tisangani
  • Solar Smith and the Sky-Pirates of Arcturus!
  • The Alchemy of Love
  • The Dordogne Zodiac
  • The Radio Marauders
  • The Dragon Mandarin
  • The Locomotive Pirates
  • The Golden Idol of Sikral
  • The Raven and the Midnight Brigade
  • Captain Battle and the Science Police
  • The Malay Coins
  • Inner Earth
  • Curse of the Vulture-God
  • Four Fiends
  • Pulp Hero Vehicle Sourcebook, Vol I

• Pulp Heroes .45 Adventure -- from Rattrap Productions (Pulp Miniatures)
  
• Pulp Zombies (supplement for All Flesh Must Be Eaten)
• Rugged Adventures (?) - Pulp Skirmish Rules
• Savage Worlds (Pinnacle Entertainment) Generic Pulp - Rules
  • The Eye of Kilquato (Pinnacle Entertainment) Adventure
  • Eternal Nazi (Pinnacle Entertainment) Adventure
  • Yahoo Group: Savage Worlds
  • Ravaged Earth Society (Double G Press)
    
  • Mystery of the Anasazi
    
• Shades of Earth Alternative History RPG set in 1938
  
• Spirit of the Century (Evil Hat Productions) Generic Pulp using FATE adaptation
  
• Terra Incognita: The NAGS Society Handbook (Grey Ghost Press) Hero & Victorian Pulp - Rules/Sourcebook
  • Dead Sea Murder (Rogue Publishing) Adventure
• Thrilling Tales (Adamant Entertainment)
• Torg (West End Games)
• Two Fisted Tales (Politically Incorrect Games) Hero Pulp - Rules
  • Pulp Villains (Politically Incorrect Games) Sourcebook

Games in Development

• Fly from Evil (Cumberland Games) - A Game of Crime by S. John Ross. Pulp Noir - Rules

• The Zeppelin Age(Heliograph Press) Hero Pulp - Rules
  • Yahoo Groups: Zeppelin Age

• Pulp Cthulhu (Chaosium) -- Due Winter 2007
• Trail of Cthulhu (Pelgrane Press) - A 'pulp Cthulhu' game, using the GUMSHOE engine

Out of Print Games

• Agent 13 Sourcebook (TSR) for Top Secret/SI Hero Pulp - Sourcebook
• Buck Rogers High Adventure Cliffhangers (TSR) Pulp-SF

• Danger Patrol (Shooting Iron Design) Pulp-SF
• Danger Quest (Torchlight Games) Pulp-SF

• Gangbusters (TSR) Pulp Noir - Rules
  • Trouble Brewing (TSR) Adventure
  • Murder in Harmony (TSR) Adventure
  • The Vanishing Investigator (TSR) Adventure
  • Death in Spades (TSR) Adventure
  • Death on the Docks (TSR) Adventure

• Indiana Jones RPG (TSR) Hero Pulp - Rules
  • IJAC1 Judge's Survival Pack (TSR)
  • IJ1 Indiana Jones and the Temple of Doom (TSR) Adventure
  • IJ2 Raiders of the Lost Ark (TSR) Adventure
  • IJ3 Crystal Death (TSR) Adventure
  • IJ4 The Golden Godess (TSR) Adventure
  • IJ5 Nepal Nightmare (TSR) Adventure
  • IJ6 The Fourth Nail (TSR) Adventure

• Mysterious Earth for Shadow Bindings
  

• World of Indiana Jones (West End Games) Hero Pulp - Sourcebook

Other Pulp RPG Resources

• Yahoo Group: Pulp Games
  
• Yahoo Group: Dashing Adventure

Follow this link for other Pulp Friendly RPGS