Подземельяs are special sets of maps, where defeating a mob on one map normally takes you to the next map of the dungeon. Entering a dungeon generally requires a key of some sort, and there is often a special prize for completing all levels. In many dungeons you can also fight unique monsters that may have useful drops. In dungeons mobs respawn instantly when attacked, instead of just after being killed. This is to prevent waiting when two or more parties go through the same dungeon at the same time. All dungeon mobs are passive unless noted otherwise.