Daily Dungeon: One of these dungeons opens each day from Tuesday to Sunday. Their purpose is for farming evolution materials and gold.
Limited Dungeon: One-time dungeons and dungeons that open only for a short period.
Urgent Dungeon: Mainly Metal and Jewel Dragon dungeons, open several times in a single day for 1 hour at each time.
Descended Dungeon: Legend/Mythical dungeons for special monsters, usually open for a full day during events.
Biweekly Dungeon: Usually dragon series dungeons, although some special dungeons and survey dungeons are sometimes introduced for 1-2 weeks at a time. The non-dragon series dungeons can later appear randomly for 1 day at a time, both during and outside of events.