Minecraft wiki entry for Difficulty, associated text: Hostile mobs spawn and deal standard damage, about 2 or 3. The hunger bar can deplete, damaging the player until 1 remains if it drains completely. Zombies do not break down doors, but villagers killed by zombies have a 50% chance of turning into zombie villagers. Zombies and skeletons rarely wear sets of enchanted armor. Vindicators can break doors.