You can buy Dark Souls: Prepare To Die for 75% off on Steam. This is a good opportunity for anyone that hasn't played the game yet.
More information.Save 75% on Dark Souls™: Prepare To Die™ Edition during this week's Midweek Madness*!
Dark Souls is the new action role-playing game from the developers who brought you Demon’s Souls, FromSoftware. Dark Souls will have many familiar features: A dark fantasy universe, tense dungeon crawling, fearsome enemy encounters and unique online interactions. Dark Souls is a spiritual successor to Demon’s, not a sequel. Prepare for a new, despair-inducing world, with a vast, fully-explorable horizon and vertically-oriented landforms. Prepare for a new, mysterious story, centered around the the world of Lodran, but most of all, prepare to die.