Dungeon Core

A dungeon is a living entity that wants to consume magic items, monsters, animals, and its favorite treat is adventurers. It lures them in with the promise of riches and fantastic equipment, encouraging them to go further and further with the promise of more incredible loot the further in they go. Dungeons have the means of integrating nearly anything it is exposed to into the dungeon, but it is more able to integrate things it consumes. Anything is possible within a dungeon; there are tales of entire civilizations that arise and live within dungeons, creating a sort of symbiotic relationship, but most dungeons are seldom occupied by sentient creatures that it can't control. A dungeon can draw from the ambient magic in the land to respawn and recreate more loot and monsters for the adventurers to face. Dungeons vary in difficulty; some are small and new with only a few rooms, like goblin caves. Other dungeons are ancient, crafted by powerful beings, and promise legendary equipment with a fortune of gold, jewels, lost art, and priceless relics. They will often connect to nearby rare resources like delicious and rare fruit, difficult to find minerals, magic creatures, and fuel sources while creating equipment and rooms necessary to harvest said equipment (like forges, tanneries, kitchens, etc.) Roving monsters may try to take advantage of anyone seeking to use these amenities, especially those seeking to kill commoners and tradespeople being escorted by adventurers. Dungeons can also be either fixed, making them easy to map and traverse, or labyrinthian, moving rooms and loot between expeditions (and in some cases during the expedition). Many dungeons, especially extremely powerful dungeons, often exist as a pocket dimension that doesn't allow any but the most powerful of teleportation spells to get adventurers out of a predicament. Adventurers need not die for a dungeon to accomplish its goals. As the word of the dungeons' existence spreads, more adventurers will be drawn to its promise of life-changing loot

Many dungeons can have various themes as they gain their own identities. Here's a list of common dungeon themes:

Dungeons of bone: These usually feature a lot of undead as they form themselves around ancient crypts or underneath graveyards. Skeletons, pit traps, flaming skulls, and runes featuring spells like ray of enfeeblement and finger of death are common features for a dungeon of this type, often featuring a lich or bone dragon as the dungeon boss

Void Dungeons: These normally feature a lot of madness, darkness, and chaotic themes. Seemingly bottomless pits, void entities, disintegration spells, madness, and gravity effects are common. These dungeons are more likely to feature an illithid or beholder as their boss

Blood Dungeons: These are some of the most savage dungeon types, often featuring spells like dominate person or Gaeas to compel adventurers to fight each other. Blood thirsty monsters like vampires, red oozes, rust monsters, and other creatures that fit the theme often make their homes here, featuring red dragons, fire giants, and Devils as their end bosses.

Arcane Dungeons: Often crafted as a hobby by a wizard or sorcerer seeking to showcase their talents

Engineered Dungeons:

Hippodrome Dungeons:

Natural Dungeons:

Mimic Dungeons:

Timecapsule Dungeons:

Celestial Dungeons:

Collesiums: