Changes

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! Dungeon/Cathedral Quests

* [[Ogden's Sign]]

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The uppermost four levels are called the "Dungeon" in-game when you point the mouse at the front door of the Cathedral, but this may be a holdover of the use of the term "dungeon" for any fantasy adventure area. Most players often call this the "Cathedral", "Church", or "Monastery", as it is directly below the desecrated building.

===Catacombs===

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! Catacombs Quests

* [[Zhar the Mad]]

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Levels 5-8 are called the Catacombs, or abbreviated to "the Cats." These dark, gray and black levels are maze-like, winding through long, narrow corridors and frequently bottle-necking at single width doorways. The cats are filled with numerous small chambers, most of which boast libraries, shrines, goat shrines, or skeletal tomes. These small rooms are usually packed full of monsters, and many players enjoy leveling up in the cats since those chambers are experience honeypots.

* [[Anvil of Fury]]

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Levels 9-12 are known as the Caves. The Caves are much more difficult than the Catacombs for most characters, with wide open areas and no long narrow spots to funnel monsters through. There are some gates along the low fences, but the ranged attackers will fire over them, and many monsters will pathfind around some cluster of rock when the gate is blocked, coming at you from behind.

The Caves can be hard to see in, since the outcroppings of rock do not go transparent when you walk behind them. Items dropped behind walls can be quite hard to find, and it's tough to target monsters or barrels at times.

[[Image:D1-level-caves1.gif|center|frame|Ranged attackers can use the lava to their advantage.]]

* [[Diablo: D1 Quest|Diablo]]

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The levels from 13-16 are referred to as Hell, though Diablo II makes it clear that this is merely a warped manifestation and not the [[Act IV|real thing itself]]. The Caves are actually more like the classical Christian conception of Hell, with rocks and lava and flame; the "Hell" levels in Diablo are very clean and sterile, with walls and stairs seemingly formed from bones, and what looks like lakes of blood behind the walls on every side.

* [[Na-Krul Quest|Na-Krul]]

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The Crypt is meant to be equivalent to Hell in difficulty, and the monsters there, all newly added in Hellfire, can be quite nasty. The area is easier than Hell, at least on normal difficulty, since all of the doorways provide easy choke points to bottleneck the monster mobs. It gets harder on Nightmare and Hell though, especially for Sorcerers, since the monsters have much more varied resistances and immunities, and quite a few of the beasties are immune to fire and lightning, forcing Sorcerers to use the much weaker magical damage spells, or else stone curse and a melee weapon. The smaller rooms and areas are a pain for Sorcerers too, keeping their spells from hitting enemies at long distance.