From Diablo Wiki
The Treasure Goblin is a dungeon-exploring semi-monster who is a new addition to the Diablo gameplay experience. He runs very quickly, dropping gold as he moves, as well as more gold and items when players hit him. If killed he drops numerous quality items, much like a Resplendent Chest.
Despite his name and sneaky appearance, the Treasure Goblin doesn't seem to have the ability to steal from players or chests. He's just a sort of moving treasure chest, purely there as a bonus without offering any risk or danger. His official description, from an update on Blizzard's Diablo facebook page.
 Diablo III Monster
|Diablo III Monster [ ]|
|Monster Family:||Treasure Goblin|
|Speed:||Fast, with pauses|
First sighted in the playable demo at Blizzcon 2010, the Treasure Goblin is a small, shiny, loudly-giggling, rat-like humanoid with a huge sack of loot over one shoulder and extremely quick foot speed. He is technically a monster, but he does not attack characters or deal any sort of damage. Instead he is basically a moving, gold-leaking treasure chest, one that drops a constant shower of gold and occasional items, and will drop lots of high quality items if you manage to run him down and kill him.
The Treasure Goblin is a sort of Easter Egg, since he's fun and diverting, and not a danger. The character is reminiscent of the Thief in the arcade classic Gauntlet II, except that he doesn't steal from you, and is purely a fun bonus diversion.
The TS is slow at first, giggling loudly and gleaming in the light to draw the eye, as does the shiny trickle of gold he's constantly dropping. He generally lets players get in a hit or two, before activating his super fast movement and darting some distance away. He's there to tease, not to escape, and he always stops just at the edge of the visible screen, where he continues laughing and screeching and making all sorts of comical, attention-getting, goblin type noises.
If the player pursues him, the Treasure Goblin will allow another hit to be landed before darting off again, dropping gold the whole while and running in semi-random directions.
He's very quick, far faster on foot than any character, and his erratic movement, and tendency to lead the player into large mobs, makes him hard to kill, especially for melee characters. Ranged attackers have an easier time nailing him from a distance, but his poor pathfinding makes him killable for any character who puts in the effort. Eventually the Treasure Goblin will run into a corner or a cul-de-sac and yield to melee strikes.
There are a few colors of Treasure Goblins to be found. Each with its own bonuses to drops. Grey drops extra crafting materials like tomes of blacksmithing or tomes of secrets. Gold drops extra gold. Red Drops extra gems. Blue drops extra magical/rare items.
 Escape Portal?
If left alone for more than a few seconds, the Treasure Goblin may cast a special portal. Players can not pass through the portal, but if the Treasure Goblin is left alone for too long he will disappear through it, depriving players of the chance to score all that delicious loot from him.
His portal and evasive behavior can be seen in the Blizzcon 2010 gameplay movie.
The Treasure Goblin seems to have taken its inspiration from the Golden Axe series, when players would in between levels sleep around a campfire and have their magic stolen by little Gnomes with sacks. they would then wake and chase them around to kil them to gain back their magic plus some, the resemblance and behaviour is very similar in both games.
Some devious little goblins have been robbing our merchants! When pursued, they simply open portals and disappear with a most aggravating chuckle. The peasantry seem to believe that the goblins serve a great demon lord known as Greed and furthermore, that their portals lead to Greed's domain! A ludicrous notion, truly.
 Blizzcon 2010 Crafting Sanctuary PanelCrafting Sanctuary Panel, where the developers urged players to "beat the candy out of him" if and when we spotted the little guy. They also presented a wanted poster with his face on it; a useful presentation since there's no way to get a good look at his visage in the actual game.
Most players assumed he was humanoid; like a twisted old man, but apparently he's some sort of demonic rat-like creature?
This type of enemy will be found in some/many/most/all dungeons in Diablo III, and there are higher quality versions as you progress through Nightmare/Hell/Inferno.
Assorted Treasure Goblin screenshots and concept arts.
- See every piece of Treasure Goblin media in the Image Gallery.
Concept art by Victor Lee.
|Monsters of Diablo III Beasts Beasts: Superunique Demons Demons: Superunique Humans Humans: Superunique Undead Undead: Superunique Objects Bosses Boss Mods Monster Info Fanmade|
Bat - Beast - Blood Hawk - Demonic Hellflyer - Electric Eel - Khazra - Lacuni - Lamprey - Quill Fiend - Rockworm - Sand Monster - Sand Shark - Sand Wasp - Scavenger - Spider - Spiderling - Swarm - Withermoth - Wood Wraith -
|Primary Quest Uniques||
Act One Bosses:
Skeleton King -
The Warden -
Strong CC (Limit 1): Knockback -- Nightmarish -- Vortex -- Jailer
|Act One Uniques||Araneae - Web Spit||Leoric - Summon Skeleton, Teleport Strike, Triple Cleave||The Butcher - Smash, Grappling Hook, Spear, Frenzy Charge|
|Act Two Uniques||Maghda - Forcefield, Summoning Ritual, Punish, Moth Dust, Teleport.||Zoltan Kulle - Fiery Boulder, Time Bubble, Ceiling Collapse, Energy Twister,Vanish, Creepy Laugh||Belial - Phase One: Triple Fireball, Summon Vipers. Phase Two: Poison Meteors, Ground Pound, Lightning Strike, Lightning Breath.|
|Act Three Uniques||Ghom - Acid Slime, Sneeze, Gas Cloud, Chomp.||Siegebreaker - Triple Hit, Charge, Leg Stomp, Grab and Throw.||Cydaea - Pain Bolts, Web Trap, Spider Pits.||Azmodan - Bellyflop, Laser Attack, Falling Corpses, Demon Gate, Pool of Destruction, Globe of Annihilation.|
|Act Four Uniques||Rakanoth - Cleave, Teleport Strike, Blade Strike, Volley, Summon Minion.||Izual - Frost Nova, Frozen, Summon Minions.|| Diablo - Phase One: Claw Rip, Charge, Hell Spikes, Shadow Vanish Grab, Curse of Destruction, Ring of Fire, Ground Stomp, Curse of Anguish, Curse of Hatred. |
Phase Two: Shadow Clone. Phase Three: Overdrive, Lightning Breath.