The best free RPGs online - Post your favorites here!

[Dethklok]

Mazes and Minotaurs, a classic-style game of high fantasy ancient Greece,

Rage, Precognition, Grace, a simple but elegant d6 fantasy game,

Wuthering Heights, a satirical game for English Gentlemen (best played with alcohol and lofty accents), and

Cthulhu Dark, an extremely simple and easy-to-play Lovecraftian roleplay/storygame.

 

[sagevine]

WoW

 

[Morrus]

Here's a site with 500 of them!

http://www.darkshire.net/jhkim/rpg/freerpgs/bykeyword/rules-lite.html

 

[Qualidar]

Lady Blackbird

Danger Patrol

Old School Hack

 

[WhimsyTheFae]

FATE Accelerated Edition... my new favorite, but I'll also mention its papa...

FATE Core... for folks who want a crunchier system...

Both are offered as PDFs on a "Pay What You Want" model (which includes paying nothing).

 

[Scrivener of Doom]

Dungeon World.

Swords & Wizardry.