Torchlight/Necropolis

The Necropolis, also known as The Tomb of the Awakened, is the second area of of the mountain that you reach.
 * Floors: 6-10

Constructs
Very similar to Rock Trolls, Constructs are large enemies that move very slowly. They should be out maneuvered and destroyed from a distance to avoid taking a significant amount of damage. Sometimes avoiding them is your best option.

Flesheaters
Zombies; strangely, these can bleed. Some have a greenish cloud surrounding them; when these are killed, a poisonous gas cloud will spawn and expand for a few seconds before dissipating (note: the gas cloud spawns at the location of the zombie's death, not at the location of its corpse, in cases where it is knocked back or off a cliff when killed). If multiple poisonous zombies are killed near each other, the damage from their gas clouds can stack, so players on harder difficulties are encouraged to either kill a bunch at once and retreat or kill them one at a time to prevent high amounts of damage.

Grave diggers
Small enemies that run around and dig up undead enemies. If left alive, they will continue to uncover a large amount of enemies (unlimited?).

Skeletons
Melee units that spawn during triggers where doors open on a platform above where your character is standing.

Spider
Large arachnids. Some spit acid. If these appear during a trigger, they come out of sewer grates in the wall.