Hoard Mode

With the introduction of beds a lot of the incentive to build in survival mode has been lost. However with the introduction of a new mode this problem could be solved.

In this mode after the first 2 or 3 nights waves of enemy mobs would attack the player with each night getting worse and worse. Zombies, skeletons, creepers, witches, phantoms, and spiders would all come for you. The only way to survive would be to build as in this mode beds are disabled and every mob listed above except phantoms can open doors.