Demon’s Souls is, without a doubt, the most challenging game in recent memory. There's the fact that a player can enter another player’s game to hunt them down and kill them when said first player is busy exploring. There's also the fact that when a player dies against a boss and returns to face it again, the boss is more powerful and the player has a shortened life bar. And then there's the matter of not being able to pause the game. Regardless of the reasons, Demon’s Souls is the also most insidious game because no matter the difficulty, its beauty and mystery entices players to go ever deeper.