Goblins are monsters that can be strong(like the Goblin Lord), or weak(like normal Goblins). They can be taken out by a single person normally, but Goblin Masters and Goblin Lords can be a challenge to take out.
Drop Items: (note - all Goblins can drop Goblin Bones and Pickaxes)
Goblin: Red Potions, Green Helms
Goblin Fighter: Red and Yellow Potions, Yellow Helms, lvl 10 Armour
Goblin Master: Yellow and White Potions, Red Helms, lvl 10 Armour, Defender Gems
Goblin Lord: Red and Yellow Potions, Blue Helms, lvl 10 Armour, lvl 10 Weapons, Soul Gems