Monster Islands

Combat islands with custom mobs that drop Bones, money, scrolls and gear.

Monster Islands are separate combat worlds full of custom mobs. Kills pay Bones, money, XP and Combat Mastery, and can drop Enchant Scrolls and island gear. Each island is harder than the last, and raid bosses spawn on them too.

3 (+ Halloween)

Islands

$250,000 + 5,000 Bones

Desert unlock

$5,000,000

Frozen unlock

Monster Islands menu with Desert Island locked and its progress shown

As a player who has Corrupted unlocked but not Desert, run /monsterislands. Capture the form with the Island Wiki button and the three island buttons, Desert showing unlock progress.

public/images/oneblockonline/wiki/monster-islands/menu.png

Getting there

Run /monsterislands to open the island menu, or /monsterislands corrupted, /monsterislands desert or /monsterislands frozen to travel straight to an unlocked island.
Server Menu > Teleport > Monster Islands.
The Monster Islands NPC in the gateway row at spawn (“Click to travel”).
During Halloween, the Halloween Island button in the /halloween guide.

/monsterislands [island]Island menu, or travel to an unlocked island

/monsters [island]Monster wiki: every mob, its abilities, drops and raid tiers (also /monster)

/fishing [island]Fishing wiki for each island (also /fish)

/monster_merchantOpen the Island Merchant while on a Monster Island

Islands and unlocks

Island	Requirements	Cost
Corrupted Island	None	Free
Desert Island	Kill Wild Spider 70, Corrupted Husk 70, Corrupted Skeleton 45, Rogue Slime 45, Frenzied Creeper 25, Corrupted Golem 10	$250,000 + 5,000 Bones
Frozen Island	Fishing Mastery 30 or Combat Mastery 75 · 1,000,000 lifetime Bones · Kill Sand Shambler 200, Dust Beetle 150, Sand Wisp 100, Sand Brute 75, Sand Guardian 75, Desert Basilisk 50, Sand Colossus 10	$5,000,000
Halloween Island	None while the Halloween event runs. No fishing here	Free

Open a locked island in the menu to see each requirement with your progress, then press Unlock Island once everything is met. The Frozen page warns you that the island is extremely difficult, and it is: even its Common mobs have 1,000 HP.

Combat rules

Rule	Value
Legendary and Mythic mobs	Take at most 10% of their max HP per hit
Assist credit	Deal at least 20% of a mob's damage to get 25% of its rewards
Bone Streak	Chain kills within 15s of each other: 5 kills +10% Bones, 10 kills +25%, 20 kills +50%
Looting	+10% item drop chance per level
Drop announcements	Rare+ drops show on your actionbar. Epic+ drops are announced to the whole server
Bonuses	Custom enchants, armor bonuses, weapon effects and pets all work here

Death penalty

Dying on a Monster Island costs part of your Bones and 35% of your Common and Uncommon monster-drop items. Higher ranks lose fewer Bones:

Rank	Bones lost on death
No rank	30%
Hero	25%
Paladin	20%
Champion	15%
Demigod	10%

Heads up

Bones you carry are at risk every fight. Spend them at the Bone Forge before taking on Epic or Legendary mobs.

Spawning

Mobs spawn around players, rarer ones less often. How many of each rarity can be alive at once grows with the number of players on the island:

Rarity	Base cap	Per player	Max
Common	25	+10	125
Uncommon	15	+6	75
Rare	6	+2.5	31
Epic	3	+1	13
Legendary	0	+0.2	5
Mythic	0	+0.1	1

Corrupted Island values. Desert and Frozen always allow one Legendary, and Frozen always allows one Mythic.

The in-game monster wiki shows how many players a mob needs before it starts spawning. On Corrupted Island, Legendary mobs need 5 players on the island; Corrupted Golems spawn even when you're alone (up to 5 at once).

Mobs

Rewards are per kill. Combat Mastery XP equals the XP shown. Ability descriptions for every mob are in /monsters.

Corrupted Island

Mob	Rarity	HP	Attack	Bones	XP	Money
Wild Spider	Common	30	3	1-2	4-8	$50-100
Corrupted Husk	Common	67	4	3-5	8-16	$100-200
Corrupted Skeleton	Uncommon	40	3	3-5	16-24	$200-300
Rogue Slime	Uncommon	50	4	3-5	16-24	$200-300
Frenzied Creeper	Rare	75	6	6-10	32-48	$800-1,200
Corrupted Drowned	Rare	110	10	10-16	64-96	$3,200-5,000
Inkbound Squid	Rare	120	10 (14 enraged)	10-16	72-108	$3,600-5,400
Corrupted Nautilus	Rare	130	11 (15 enraged)	12-18	80-120	$4,000-6,000
Aquatic Crawler	Rare	350	6	12-20	80-120	$4,500-7,000
Corrupted Golem	Epic	700	22.5	14-20	80-112	$5,000-7,000
Abyssal Guardian	Epic	150	11	24-36	180-260	$9,000-13,000
Decayed Nautilus	Epic	180	13	28-42	220-300	$11,000-15,000
Prismarine Lurker	Epic	700	12	30-45	240-360	$12,000-18,000
Ancient Elder Guardian	Legendary	320	16	60-90	480-640	$24,000-32,000
Prismarine Rider	Legendary	2,100	16	75-110	600-800	$30,000-42,000
Prismarine Rider (mounted)	Legendary	2,500	50	112-165	900-1,200	$45,000-63,000
Aquatic Primordial	Legendary	6,000	60	225-330	1,800-2,400	$90,000-126,000

Desert Island

Mob	Rarity	HP	Attack	Bones	XP	Money
Sand Shambler	Common	110	9	3-6	8-16	$100-200
Sand Brute	Uncommon	180	10 (12 enraged)	9-15	24-32	$300-400
Sand Guardian	Uncommon	150	10	9-15	24-32	$300-400
Dust Beetle	Rare	150	8	30-42	48-72	$1,200-1,800
Sand Wisp	Rare	100	12	30-42	48-72	$1,200-1,800
Desert Basilisk	Epic	700	12	42-60	112-160	$8,000-12,000
Sand Colossus (raid)	Legendary	5,000	-	Raid rewards	-	-

Frozen Island

Mob	Rarity	HP	Attack	Bones	XP	Money
Ice Shambler	Common	1,000	50	90-180	8-16	$100-200
Ice Sprite	Uncommon	500	65	270-450	24-32	$300-400
Glacial Knight	Uncommon	1,500	75	270-450	24-32	$300-400
Frosthawk	Rare	750	100	900-1,260	48-72	$1,200-1,800
Frost Mage	Epic	5,000	-	1,260-1,800	112-160	$8,000-12,000
Glacial Titan (raid)	Legendary	50,000	-	Raid rewards	-	-
The Frost Wyrm (raid)	Mythic	100,000	-	Raid rewards	-	-

Some mobs summon minions (Dust Beetle Minion, Ice Shambler Minion and the Frost Wyrm's guards). Minions give no rewards.

Halloween Island

Open during the Halloween event, with a day/night cycle: day and night bring different mobs. Every mob here can drop Candy (5x the normal chance).

Mob	When	Rarity	Bones	XP	Money
Scarecrow	Day	Common	3-6	8-16	$100-200
Vampire Wolf	Night	Common	3-6	8-16	$100-200
Gargoyle	Day	Uncommon	9-15	24-32	$300-400
Batlord	Night	Uncommon	9-15	24-32	$300-400
Clawed Horror	Night	Uncommon	9-15	24-32	$300-400
Pumpkinhead	Day	Rare	30-42	48-72	$1,200-1,800
Gravewatcher	Day	Rare	30-42	48-72	$1,200-1,800
Horror Brute	Day	Rare	30-42	48-72	$1,200-1,800
Banshee	Night	Rare	30-42	48-72	$1,200-1,800
Abomination	Night	Epic	42-60	112-160	$8,000-12,000

Fighting Sand Shamblers and a Sand Brute on Desert Island

On Desert Island in daylight, third person, mid-fight with 3-4 Sand Shamblers and a Sand Brute around you. Damage indicators on (/cesettings) so floating numbers show.

public/images/oneblockonline/wiki/monster-islands/desert-fight.png

Drops

Drop	From	Chance
Enchant Scroll	Any mob	0.25%-100% by rarity (see Bone Forge)
Abyss gear piece	Corrupted mobs	1%
Abyss statue	Corrupted mobs	0.2%
Abyss Scythe / Sword / Brutal Sword	Corrupted Golem	2%
Desert gear piece	Desert mobs	0.2% (Desert Basilisk 0.4%)
Frost gear piece	Frozen mobs	0.2% each
Blue Ice	Frozen mobs	4%
Diamonds, Netherite Scrap	Island mobs	2.4-3.2%
Dune Relics scroll (fishing)	Aquatic Crawler	8%
Mirage Bounty scroll (fishing)	Prismarine Lurker	7%
Pharaoh's Blessing scroll (fishing)	Prismarine Rider	6%
Frosty Haul scroll (fishing)	Aquatic Primordial	10%
Desert Fishing Rod (Steady Hands)	Prismarine Rider	18.75%
Frost Fishing Rod (Frosty Haul)	Prismarine Rider (mounted)	35%
Flesh Assortment weapon or tool	Halloween Island mobs	1-3% by rarity
Flesh Assortment Hat or Cape	Halloween Island mobs	0.5% each
Shroud of Dead backpack	Halloween Island mobs	0.5%

Flesh Assortment drops roll one of 7 items with equal odds (Sword, Pickaxe, Axe, Shovel, Bow, Fishing Rod, Shield), each with its own Unique enchant at a random level I-V. Looting doesn't boost the Halloween pools.

Island Merchant

Each main island has a Wandering Merchant NPC (“Sell island loot for Money”). Talk to it or run /monster_merchant to sell fish, materials, island gear and decorations. Pick an item and amount, or press Sell All (Sell All skips gear; select gear to sell it). The merchant only buys.

Island	Merchant	Fish (each)	Gear (each)
Corrupted	x -198, y 62, z 18	Pufferfish $75, Anglerfish $200, Spore Jelly $200, Vampire Squid $500	Abyss gear and statues $12,500
Desert	x 147, y 92, z -173	Oasis Koi $50, Sand Eel $50, Tropical Fish $150, Mirage Fish $150, Ashmaw $150, Bone Dart $400, Cinder Pike $1,000	Desert gear and decorations $25,000
Frozen	x 435, y 60, z 109	Herring $100, Mackerel $100, Redfish $300, Giant Isopod $800, Barreleye Fish $2,000	Frost gear $50,000

Materials sell too, for example Obsidian $40, Golden Apple $100 and Enchanted Golden Apple $1,000 on Corrupted; Saddle and Nautilus Shell $80 on Desert; Packed Ice, Blue Ice and Phantom Membrane $160 on Frozen.

Island Merchant sell menu on Desert Island

Talk to the Wandering Merchant on Desert Island (x 147, y 92, z -173) with some Oasis Koi and a Desert gear piece in your inventory. Capture the Island Merchant form with prices and the Sell All button.

public/images/oneblockonline/wiki/monster-islands/merchant.png

Tips

Spare island gear is steady money: $12,500 (Abyss), $25,000 (Desert) or $50,000 (Frost) per piece at the merchant.
Desert needs 10 Corrupted Golem kills. They're Epic with 700 HP and hit for 22.5, so bring good armor.
Pets fight alongside you and some duplicate drops. See Pets.
Fishing on the islands is another route to Frozen (Fishing Mastery 30). See Fishing.

The /monsters wiki page for a Desert Island mob

Run /monsters desert and open the Desert Basilisk page. Capture the page with its portrait, stats, abilities and drops.

public/images/oneblockonline/wiki/monster-islands/monster-wiki.png

Raids & Bosses

Sand Colossus, Glacial Titan, Frost Wyrm and Halloween bosses.

Bone Forge

Spend your Bones and scrolls.

Masteries

Combat Mastery comes from kills.

PreviousArmor Sets & Weapons

Next Raids & Bosses