Spiders in Diablo III count as Beasts and are of four major subtypes:
The lesser, but most numerous, Spiderlings swarm around, trying to take heroes down by sheer numbers. They often spawn from eggs, or just wait in the shadows, pouring through like an endless tide. Cydaea also summons them in large numbers.
Overall, Spiderlings are not dangerous, easily dealt with by using any area attacks. However, they can (and often will) block path, making hero unable to deal with more dangerous ranged attackers. They also award less experience and loot than normal monsters.
- Venimite (Caverns of Araneae)
Brood DaughtersEditMature 'worker' spiders, of larger size than Spiderlings, and of totally different shape. They will often come to aid to Spiderlings, if they hear heroes killing them. They are slower, but tougher and stronger than their minors, and can throw a web that makes a small patch of terrain slow players down by roughly 60%. They can also hide in the webs, ambushing heroes or walking freely through otherwise impassable areas.
In Act II, the sentry obelisks in dungeons can summon three or four spectral Brood Daughters at a time. These spiders deal Cold, Poison, Fire or Lightning damage (depends on color of the obelisk) instead of Physical. Destroying an obelisk will not kill the spiders, though.
Unique Brood DaughtersEdit
Toxic LurkersEditThe largest (and least numerous) 'warrior' spiders. They are easily seen from afar due to their size, and cannot hide in the webs. Their melee attack hits quite hard, they can launch webs that cover greater areas, and also have innate Plagued affix that allows them to spawn one pool of poison on the ground.
The only known Spider Queen is Queen Araneae. She is the largest of them all, but is essentially an overgrown Lurker. She serves as the second boss of Act I.
- The hierarchy of Spider monsters in Diablo III harkens to real-world insects (e.g. ants), but not spiders.