All RPG (Role-Playing Games) developed for the early PC (DOS-based) platform.
Due to the massive size of RPG titles available for the PC, I've broken them up into four distinct categories; Epic RPG, Action RPG, DOS Classic, and Massive Multiplayer Online RPG (MMORPG). Though some hybrid titles and recent FPS-style RPGs really blur up these RPG genres, the best way to distinguish them is this way:
Epic RPG: Massive worlds, long gameplay (50+ hrs is typical), very detailed levelling up & characters stats, more open-ended gameplay, slower-paced but detailed quests. (Oblivion, Baldur's Gate)
Action RPG: Hack'n'slash gameplay, more linear storyline, usually automated levelling up and less dialog with NPC characters, which gives it more action feel to the game. (Diablo, Dungeon Siege)
DOS Classic RPG: Cut-off is around 1997/98, with the launch of Diable and Baldur's Gate. Any DOS-based games before that, wether they were epic or action RPGs, will go in this category. (early Ultima series, D&D Gold Box games)
MMORPG: Any RPG played online in a massive universe populated by peer gamers. (World of Warcraft, EverQuest)
This list is sorted by Listal popularity. I think I've got most of them, but if missed one, please let me know via comments below.
MASTER RPG LIST: RPG World
Other PC RPG Lists:
RPG World: Epic RPG
RPG World: Action RPG
RPG World: MMORPG Edition
(under construction)
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Consoles:
RPG World: Playstation 2 Edition
RPG World: SNES Edition
RPG World: PlayStation Edition
RPG World: Xbox 360 Edition
RPG World: Playstation 3 Edition
RPG World: Xbox Edition
RPG World: GameCube Edition
RPG World: NES Edition
RPG World: Genesis / Mega Drive
RPG World: Dreamcast Edition
RPG World: Nintendo64 Edition