Dark Souls: Prepare to Die Edition for PC on sale for $19.90

Dark Souls: Prepare to Die Edition, the PC version of last year's punishing action-RPG that added new content to the game, is now on sale through Amazon for $19.90.

The game is available as a download only, and requires a Steam account for installation and activation. The PC version of the game comes pre-expanded with Artorias of the Abyss, which added new locations, enemies and a side plot. The DLC was released on the Xbox Live Marketplace and PlayStation Network on Oct. 23.

There's no telling when the discount, which cuts the game's usual $39.99 price tag by more than half, will expire, so parties seeking Dark Souls unique brand of pain should act quickly.