Dungeonslayers (Version 3.5) (2008)

From the website:

Welcome to Dungeonslayers, the role-playing game, in which the characters are slaying monsters and looting dungeons in an archaic and old-fashioned way.
The rules of Dungeonslayers were designed to be very basic and simple on purpose, to bring the charming flair of old-school gaming back to life.

Dungeonslayers is not about having elaborate, realistic rule mechanics nor about playing out pseudointellectual drama filled with egomaniac monologues. Instead it’s about straight-forward plots in your traditional fantasy world, where evil is still evil, where monsters have to be killed mercilessly, where devious traps strike and where phat loot awaits, while pencil and graph paper work their own special magic around the gaming table.

Despite the rules' lack of details or possibly because of this, player characters tend to evolve into highly individual personalities.
So, let’s put on the chainmail once again, draw your blade or dig up the spell book, the next dungeon and its monstrous hordes await your return.