Yesterday, I undertook the considerable task of cataloguing my RPG collection. Now, in order to not drive me insane, I stuck with the books that I had physical copies of—either professionally bound or stapled PDFs. I have yet to centralize my PDFs much less catalogue them, so the number of games I have access to is larger than what's listed below. Honestly, though, if I'm going to game, it'll likely be a game for which I have a physical book. (And until I have an e-reader, that'll likely remain the case.)
So, for those curious, I've listed my collection below. It's alphabetized by line. I've called out each line separately even if it needs another rulebook to be played (so each Savage Worlds line is separated as is each World of Darkness). Generic books are listed under Systemless.
I plan to post pics later, if for no other reason than to immortalize the days when my office/gaming area was as clean as it is right now.
23rd Letter
Core Rulebook
50 Fathoms
Core Rulebook
Aberrant
Core Rulebook
Aeon/Trinity
Core Rulebook (Aeon Spiral-bound)
Aliens
Core Rulebook
All Flesh Must Be Eaten 1e
Core Rulebook
Alternity
Introductory Box Set
Player's Handbook
Gamemaster Guide
Fast Play
Campaign Kit
Tangents
Mindwalking
Any Town, USA
Core Rulebook
Artesia
Core Rulebook
Battle Cattle 2e
Core Rulebook
Quest for the Holy Pail
Big Eyes, Small Mouth 2e
Core Rulebook
Blue Planet 1e
Core Rulebook
The Book of LARP
Core Rulebook
Broomstix
Core Rulebook
Buffy the Vampire Slayer
Core Rulebook
Burning Wheel
Core Rulebook
Character Burner
Monster Burner
Call of Cthulhu 5e
Core Rulebook
The Great Old Ones
At Your Door
Nocturnum
Cartoon Action Hour
Core Rulebook
Metal Wars
Children of Fire
Core Rulebook
Children of Clay
Children of the Sun
Core Rulebook
Chosen
Core Rulebook (Softcover)
Core Rulebook (Hardcover)
Chill (Mayfair Edition)
Core Rulebook
Undead & Buried
Lycanthropes
Vampires
Things
City of Heroes
Quickplay Pack
Colonial Gothic
Core Rulebook
Secrets
Poor Wizard's Grimoire
Colonial Gothic Revised
Core Rulebook
Conspiracy X 2e
Core Rulebook
Cosmic Enforcers
Core Rulebook
Covert Generation
Core Rulebook
Cybergeneration Revolution 2
Core Rulebook
EcoFront
MediaFront
VirtualFront
Bastille Day
Generation Gap
Researching Medicine
Cyberpunk 2.0.2.0.
Core Rulebook
Protect & Serve
WildSide
Chromebook 1
Chromebook 2
Chromebook 3
Chromebook 4
Home of the Brave
Character Sheets
Dark Conspiracy 1e
Core Rulebook
Dark*Matter (Alternity)
Campaign Setting
The Killing Jar
Xenoforms
Deadlands 1e
Core Rulebook
The Quick & the Dead
Rascals,Varmints, & Critters
Marshal Law
Perdition's Daughter
Independence Day
Deadlands Reloaded
Core Rulebook
Delta Green
Countdown
Demon: The Fallen
Core Rulebook
Storyteller's Companion
Player's Guide
De Profundis
Core Rulebook
Doctor Who (Cubicle 7)
Box Set
Gamemaster's Screen
Dogs in the Vineyard
Core Rulebook
Donjon
Core Rulebook
Dragon Age
Box Set (Levels 1-5)
Dread: The First Book of Pandemonium
Core Rulebook (Blue Softcover)
Dream Park
Core Rulebook
Dust Devils
Core Rulebook (Coil-bound)
Dust Devils (Expanded)
Core Rulebook
The Dying Earth
Core Rulebook
Eclipse Phase
Core Rulebook
Eldritch Ass Kicking
Core Rulebook (PDF Version)
Core Rulebook (Print Version)
The End 1e
Core Rulebook
Judge's Screen
The End (Lost Souls Edition)
Core Rulebook (Black Bible)
The Boston Massacre
Engel (German Edition)
Core Rulebook
Ordensbuch: Michaeliten
Ordensbuch: Gabrieliten
Ordensbuch: Urieliten
Ordensbuch: Raphaeliten
Pandoramicum
Traumsaat
Escape from Tentacle City
Core Rulebook
Exalted 1e
Core Rulebook
The Extraordinary Adventures of Baron Munchausen
Core Rulebook
Extreme Vengeance
Core Rulebook
Die and Die Again
Fading Suns 1e
Core Rulebook
Merchants of the Jumpweb
Byzantium Secundus
Forbidden Lore: Technology
GM Screen
Introduction to Fading Suns
Fading Suns 2e
Core Rulebook
Faery's Tale Deluxe
Core Rulebook
Fates Worse than Death
Core Rulebook
Fireborn
Player's Guide
Fvlminata 2e
Core Rulebook
Gear Krieg
Core Rulebook
Geist: The Sin-Eaters
Core Rulebook
Ghostbusters
Box Set
Ghostbusters International
Box Set
Ghost Dog
Core Rulebook
Godlike
Core Rulebook
Godsend Agenda
Core Rulebook
Haiiiii-ya!
Core Rulebook
Haven: City of Violence
Core Rulebook
Bulletproof Screen
HeartQuest
Core Rulebook
Heaven & Earth 3e
Core Rulebook
Hellboy
Core Rulebook
BPRD Minis
Bad Guys Minis
HOL
Core Rulebook
Hunter: The Vigil
Core Rulebook
In Nomine
Core Rulebook (Burning Feather)
Game Master's Guide
GM Pack
In Nomine Anime
InSpectres (English Edition)
Core Rulebook (Staple-bound)
Core Rulebook (Spiral-bound)
InSpectres (German Edition)
Core Rulebook
Justifiers
Core Rulebook
The Tower
The Insidious Campaign
Poseidon
Aborigine Sourcebook
The Silent Corp Sourcebook
CyberMedTech Sourcebook
Hybrid Sourcebook
Out of the Mists
Cold as Ice
Corporate Sourcebook
Kayfabe
Core Rulebook
Kult 1e
Core Rulebook
GM Screen
Player's Companion
Metropolis Sourcebook
Legions of Darkness
Taroticum
Kult 2e
Heart, Mind, & Soul
Beyond the Boundaries
The Judas Grail
Lacuna
Core Rulebook (Staple-bound)
Land of Og
Core Rulebook
The Complete Caveman's Club Book
The Last Exodus
Core Rulebook
The Last Exodus (German Version, Der Letzte Exodus)
Core Rulebook
Legend of the Five Rings 1e
Core Rulebook
The Book of the Shadowlands
The Way of the Unicorn
Honor's Veil
Legend of the Five Rings 3e
Core Rulebook
Little Fears
Core Rulebook
Little Fears (French Edition)
Core Rulebook
GM Screen
Little Fears (German Version, Kleine Aengste)
Core Rulebook
Little Fears Nightmare Edition
Core Rulebook
Low Life
Core Rulebook
Masterbook
Core Rulebook
Meddling Kids
Core Rulebook
Monster Island
Core Rulebook
The Mountain Witch
Core Rulebook
Morpheus
Core Rulebook
The Stuff Dreams are Made of
Dreams of Steel
Operation: Hitler!
Mortal Coil
Core Rulebook
Mouse Guard
Core Rulebook
Mutants & Masterminds 2e
Core Rulebook
Freedom City
Nocturnals: A Midnight Companion
Mutant Chronicles 2e
Core Rulebook
The Brotherhood: The Cleansing Flame of the Cardinal
Cybertronic: The Empire of Steel and Stealth
My Life with Master
Core Rulebook
Necessary Evil
Core Rulebook
Nephilim
Core Rulebook
Gamemaster's Companion
Nightspawn/Nightbane
Core Rulebook (Nightspawn)
Between the Shadows (Nightbane)
Nine Worlds
Core Rulebook (Coil-bound)
Nobilis (Hogshead Edition)
Core Rulebook
Noir
Core Rulebook
The No Press RPG Anthology
Core Rulebook
Normal, Texas
Quick Play (Hair Salon)
Quick Play (Praying Mantis)
Under Construction
Obsidian: The Age of Judgement
Core Rulebook
Wasteland
Legends
octaNe
Core Rulebook ( Coil-bound)
Omlevex
Core Rulebook
Orbit
Core Rulebook
Over the Edge 1e
Core Rulebook
Player's Guide
Pagoda
Core Rulebook
Pantheon and Other Roleplaying Games
Core Rulebook
Powerkill/Puppetland
Core Rulebook
Paladin
Core Rulebook
Pathfinder
Core Rulebook
Primetime Adventures
Core Rulebook (Coil-bound)
Redhurst Academy of Magic
Core Rulebook
Riddle of Steel
Core Rulebook
Rippers
Core Rulebook
Robots & Rapiers
Quick Start Rules
RUNE
Enter the Viking
Last Hero of Scandinavia
Crouching Wizard, Smashing Hammer
Savage Worlds 1e
Core Rulebook
Savage Worlds Explorer's Edition
Core Rulebook
The Secret Lives of Gingerbread Men
Core Rulebook
The Seventh Seal 1e
Core Rulebook
The Shadow of Yesterday
Core Rulebook (Softcover)
Shadowrun 3e
Core Rulebook
Loose Alliances
Mr. Johnson's Little Black Book
Sprawl Survival Guide
Target: Wastelands
Shadowrun Companion
Character Dossier
Year of the Comet
Dragons of the Sixth World
Shadowrun 4e
Emergence
The Shattered Sky
Core Rulebook
Gossamyr
GM Screen
Character Sheets
Sketch!
Core Rulebook
Slasher Flick
Core Rulebook
Killer Collection
Sorcerer
Core Rulebook
Sorcerer & Sword
The Sorcerer's Soul
Sex and Sorcery
Charnel Gods
SLA Industries
Core Rulebook
Contract Directory
Space Ninja CyberCrisis XDO
Core Rulebook
Spookshow
Core Rulebook
StarChildren: Velvet Generation
Core Rulebook
Star*Drive (Alternity)
Campaign Setting
Black Starfall
Red Starrise
The Lighthouse
Klick Clack
System Guide to Aegis
Alien Compendium
Outbound
The Last Warhulk
Planet of Darkness
Star Wars (d6)
Core Rulebook
Star Wars (d20)
Core Rulebook
Steeltown
Core Rulebook
The Swing: Reality Guide
Core Rulebook
Systemless
The Cursed Chateau
Finis: The Book of Endings
Beyond the Storm: Shadows of the Big Easy
Teenage Mutant Ninja Turtles & Other Strangeness
Core Rulebook
Terra Primate
Core Rulebook
Thirty
Core Rulebook (Spiral-bound)
Core Rulebook (Perfect bound)
Thousand Suns
Core Rulebook
Foundation Transmissions
Transmissions from Piper
Tour of Darkness
Core Rulebook
Trail of Cthulhu
Shadows over Filmland
Transhuman Space
Under Pressure
Tribe 8 1e
Core Rulebook
Vimary Sourcebook
Tri-Stat
Core Rulebook (dX)
Ex Machina
Dreaming Cities
UnderGround
Core Rulebook
UnderWorld
Core Rulebook
Unknown Armies 1e
Core Rulebook
Postmodern Magick
Unknown Armies 2e
Core Rulebook
Break Today
Universalis
Core Rulebook
Universe (Tower Ravens)
Primer
Vampire: The Masquerade 2e
Core Rulebook
Vampire: The Requiem
Core Rulebook
Vespertine
Core Rulebook
Victoriana
Core Rulebook
Dragons in the Smoke
Violence Future
Core Rulebook (Coil-bound)
vs. Monsters Deluxe Edition
Core Rulebook
Addition
The Whispering Vault
Core Rulebook
WindZone
Core Rulebook
WitchCraft (Eden Studios)
Core Rulebook
Abomination Codex
Mystery Codex
Power & Privilege
Witch Girls Adventures
Core Rulebook
The World of Darkness (nWoD
Core Rulebook
World of Tank Girl
Wyrd
Core Rulebook
Wyrd is Bond
Core Rulebook
Zero
Core Rulebook
Zombi: the earth won't hold the dead
Core Rulebook