# Dungeons; Dungeon Quirks *Source: Dungeon Master's Guide (2024) p. 65* **Dungeon Quirks** `dice: [](dungeons-dungeon-quirks-xdmg.md#^dungeon-quirks)` | dice: 1d100 | Quirk | |-------------|-------| | 01–02 | Abandoned after internal strife devastated its population | | 03–04 | Abandoned because the site was cursed by a god or other powerful entity | | 05–06 | Abandoned by its original creators when a plague spread through the dungeon | | 07–09 | Amazingly well preserved ancient city inside a dome encased in volcanic ash, submerged underwater, or entombed in desert sands | | 10–12 | Built as a fortress guarding a mountain pass | | 13–15 | Built as a maze, either to protect treasure from intruders or as a gauntlet where prisoners were hunted by monsters | | 16–18 | Built as a stronghold but abandoned after it fell to invaders | | 19–21 | Built as a treasure vault to protect powerful magic items and great wealth | | 22–23 | Built atop a cloud | | 24–26 | Built beneath a city in catacombs or sewers | | 27–29 | Built beneath or on top of a mesa or several connected mesas | | 30–32 | Built by a religious group to serve as a temple and linked to the energy of other planes of existence | | 33–35 | Built by dwarves and decorated with enormous dwarven faces that have been defaced by its current inhabitants | | 36–38 | Built in a volcano | | 39–40 | Built in or among the branches of a tree | | 41–43 | Built to house a planar portal but abandoned when creatures or energy from the other side of the portal seeped into the dungeon | | 44–46 | Carved into a meteorite (before or after it fell to earth) | | 47–49 | Carved into a sheer cliff face | | 50–52 | Caverns carved by a beholder's disintegration eye ray, with unnaturally smooth walls and vertical shafts connecting different levels | | 53–55 | Contains something that led to the downfall of its creators or inhabitants | | 56–58 | Dug as a burrow by a monster that might still live inside | | 59–61 | Entrance concealed behind a waterfall | | 62–64 | Floating on the sea | | 65–66 | Intended as a death trap to eliminate any creature that enters, perhaps to guard a treasure or to harvest souls for a necromantic rite | | 67–69 | Intended as a tomb | | 70–72 | Long known as the site of a great miracle or another auspicious event | | 73–75 | Made by amphibious creatures (such as kuo-toa or aboleths), using water to protect the innermost reaches from air-breathing intruders | | 76–78 | Made by a powerful spellcaster (perhaps a lich) as a site for magical research and experimentation | | 79–81 | Made by giants at a vast scale | | 82–84 | Natural caverns featuring a range of strikingly beautiful rock and crystal formations | | 85–87 | On an island in an underground sea | | 88–90 | On the back of a Gargantuan creature | | 91–93 | Originally constructed as a mine but abandoned when tunnels connected to dangerous Underdark tunnels | | 94–96 | Secreted away in a demiplane or in a pocket dimension | | 97–98 | Slowly abandoned as its creators died out or migrated away | | 99–00 | Transformed by multiple events or disasters over the course of centuries | ^dungeon-quirks