Robson's Isle (also known as Underground Isle) can only be accessed via the Steamship at the Sunken Mines and the Steamship deep under the north of Thais when the Steamship World Change is active, operated by Junkar. It's inhabited by Robson and his Goblin guard Lunch.

NPCs

Robson's Isle NPCs (3 NPCs)

Name		Job	Buy/Sell	Location
Junkar		Ship Captain	✗	Near the Steamship in Thais (here), Robson Isle (here) and Sunken Mines (here).
Lunch		Assistant Fisherman	✗	Robson's Isle, docks north of Junkar's steamship.
Robson		Postman	✓	Robson Isle

Creatures

The following amount of creatures can be found approximately:

• 1 Banshee
• ~12 Bog Raiders
• ~12 Bonebeasts
• ~5 Earth Elementals
• 3 Giant Spiders
• 2 Mutated Humans
• ~10 Mutated Rats
• 1 Nightmare Scion
• 3 Nightstalkers
• ~10 Tarantulas

Name	Exp	HP	Max. Damage	Loot
Tarantula	120	225	92	0-40× Gold Coin Tarantula Egg Spider Fangs (semi-rare) Brass Legs (semi-rare) Plate Shield (semi-rare) Steel Helmet (rare) Monk Robe (very rare) Time Ring (very rare)
Mutated Human	150	240	164 (90 , 14 , 60 )	0-130× Gold Coin (common) Fishbone (uncommon) Scale Armor (uncommon) 0-2× Worm (uncommon) Mutated Flesh (uncommon) Cheese (uncommon) Strange Talisman (semi-rare) Sword (semi-rare) Heavily Rusted Armor (semi-rare) Peanut (rare) Silver Amulet (very rare) Fern (very rare)
Mutated Rat	450	550	305	1-130× Gold Coin (common) Skull (Item) (uncommon) Stone Herb (semi-rare) Mutated Rat Tail (semi-rare) Plate Shield (semi-rare) Halberd (semi-rare) Green Mushroom (semi-rare) Mouldy Cheese (rare) Health Potion (rare) Stealth Ring (rare) Spellbook of Enlightenment (very rare) Tower Shield (very rare)
Earth Elemental	550	650	328+	0-130× Gold Coin (common) 0-30× Earth Arrow (uncommon) 0-10× Small Stone (uncommon) Blank Rune (uncommon) Lump of Earth (uncommon) Strong Mana Potion (semi-rare) Might Ring (semi-rare) Heavily Rusted Armor (semi-rare) Small Topaz (rare) Clay Lump (rare) Coal (rare)
Nightstalker	500	700	264 (90 , 4 , 170 )	0-110× Gold Coin (common) Strong Mana Potion (semi-rare) Shadow Herb (semi-rare) Crystal Ring (rare) Protection Amulet (rare) Spirit Cloak (rare) Platinum Amulet (very rare) Boots of Haste (very rare) Haunted Blade (very rare) Chaos Mace (very rare) Crystal of Balance (very rare)
Bonebeast	580	515	342+ (200 , 95 , 47+ )	0-90× Gold Coin (common) Bone (common) Skull (Item) (uncommon) Plate Armor (uncommon) Bony Tail (uncommon) Bone Club (semi-rare) Bone Shield (semi-rare) Green Mushroom (semi-rare) Health Potion (rare) Hardened Bone (rare) Bonebeast Trophy (very rare) Stone Skin Amulet (very rare)
Bog Raider	800	1,300	619 (365 , 114 , 140 )	1-105× Gold Coin (common) Boggy Dreads (uncommon) Great Health Potion (semi-rare) Great Spirit Potion (semi-rare) Plate Legs (semi-rare) Belted Cape (rare) Springsprout Rod (rare) Ultimate Health Potion (rare) Paladin Armor (very rare)
Banshee	900	1,000	654 (100 , 4 , 350 , 200 )	0-80× Gold Coin Candlestick Silver Amulet Simple Dress Hair of a Banshee (semi-rare) Petrified Scream (semi-rare) Black Pearl (semi-rare) Poison Dagger (rare) Silver Brooch (rare) White Pearl (rare) Lyre (rare) Stone Skin Amulet (rare) Blue Robe (rare) Ring of Healing (rare) Strong Mana Potion (rare) Spellbook (rare) Wedding Ring (very rare) Terra Mantle (very rare) Red Robe (very rare) Life Crystal (very rare) Crystal Ring (very rare) Sweet Smelling Bait (very rare) Stone Skin Amulet (very rare)
Giant Spider	900	1,300	378 (300 , 78 ) + 44	1-195× Gold Coin (common) 1-12× Poison Arrow (uncommon) Plate Armor (uncommon) Plate Legs (uncommon) Two Handed Sword (semi-rare) Spider Silk (semi-rare) Steel Helmet (semi-rare) Strong Health Potion (semi-rare) Knight Armor (rare) Knight Legs (rare) Time Ring (rare) Lightning Headband (very rare) Platinum Amulet (very rare)
Nightmare Scion	1,350	1,400	420+	1-155× Gold Coin (common) 1-4× Meat (common) Essence of a Bad Dream (uncommon) Scythe Leg (semi-rare) 1-3× Platinum Coin (rare) Crown Helmet (rare) Bar of Chocolate (very rare) Crystal of Focus (very rare) Death Ring (very rare) Diamond Sceptre (very rare) Focus Cape (very rare) Shadow Sceptre (very rare)