Demon's Souls harbors many more intricacies as well--nooks and crannies loaded with extra loot, a mechanic known as world tendency that changes the difficulty level depending on certain actions you take, and additional benefits (and risks) should you rescue (or kill) certain non-player characters you encounter on your travels. There's a lot to discover, and the game wants you to figure it all out on your own. But while Demon's Souls doesn't serve the answers to you on a gilded platter, it gives you a number of refined and inspired tools to help you succeed, and its astounding, oppressive world will cast its spell on you. If you crave true innovation, a fair but relentless challenge, and gripping exploration in which every step has consequences, then you crave Demon's Souls.