Here's my favorite games that I have on my shelf:
Dungeons & Dragons (1974, 77-78 (Holmes), 81 (Moldvay), and 83-86 (Mentzer) editions)
Advanced Dungeons & Dragons (1st edition)
Empire of the Petal Throne
Metamorphosis Alpha (1st edition)
Gamma World (1st & 2nd editions)
Traveller (& MegaTraveller)
Traveller: 2300 (& 2300 AD)
Space: 1889
Dangerous Journeys: Mythus
RuneQuest (1st-3rd editions)
Stormbringer (1st edition)
Call of Cthulhu (3rd & 5th editions)
King Arthur Pendragon (1st, 3rd & 4th editions)
Prince Valiant: The Storytelling Game
Mekton (II and Zeta)
Cyberpunk (1st edition)
Amber Diceless Role-Playing
Ars Magica (1st edition)
Bushido (1st edition)
Dragonquest (2nd edition)
HeroQuest
James Bond 007
Paranoia (1st edition)
Sorcerer (& Sorcerer & Sword)
Tunnels & Trolls (5.5 edition)
Warhammer Fantasy Roleplay (1st edition)
Almost all of these (AD&D being the big exception) are at least theoretically complete and playable with a single book or boxed set, even those with tons of supplements. The vast majority of them I'll likely never play again, but who knows, maybe someday...
Dungeons & Dragons (1974, 77-78 (Holmes), 81 (Moldvay), and 83-86 (Mentzer) editions)
Advanced Dungeons & Dragons (1st edition)
Empire of the Petal Throne
Metamorphosis Alpha (1st edition)
Gamma World (1st & 2nd editions)
Traveller (& MegaTraveller)
Traveller: 2300 (& 2300 AD)
Space: 1889
Dangerous Journeys: Mythus
RuneQuest (1st-3rd editions)
Stormbringer (1st edition)
Call of Cthulhu (3rd & 5th editions)
King Arthur Pendragon (1st, 3rd & 4th editions)
Prince Valiant: The Storytelling Game
Mekton (II and Zeta)
Cyberpunk (1st edition)
Amber Diceless Role-Playing
Ars Magica (1st edition)
Bushido (1st edition)
Dragonquest (2nd edition)
HeroQuest
James Bond 007
Paranoia (1st edition)
Sorcerer (& Sorcerer & Sword)
Tunnels & Trolls (5.5 edition)
Warhammer Fantasy Roleplay (1st edition)
Almost all of these (AD&D being the big exception) are at least theoretically complete and playable with a single book or boxed set, even those with tons of supplements. The vast majority of them I'll likely never play again, but who knows, maybe someday...