Minecraft Experiment," in which player death results in the immediate deletion of the world he or she has been working so hard to spruce up. The game's creator, Markus Persson recently posted on his blog that the feature series has inspired him to include a similar "Hardcore" mode in the game, where the world will be destroyed and reset every time the player gets killed by a Creeper, skeleton, gravity or any of the other deadly forces present in the game.
Look, we have a hard enough time rationalizing the remarkable amounts of time we put into this game already. To play a mode where, with one missed jump, entire weeks of our lives are erased, Eternal Sunshine of the Spotless Mind-style? That's straight-up masochism, dudes.