Thalassus

This article is about the monster. For the voyage, see Thalassus (voyage).

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Thalassus
Release								7 June 2011 (Update)
Members								Yes
Combat level								205
Race								Sea monster
Quest								Deadliest Catch Jed Hunter
Location								Northern Seas
Gender								Male
Options								Examine
Examine								Argh! Run away!
Advanced data
NPC ID								None
Object ID								6603, 6615, 104072, 104073
Links								MROD

Thalassus is a sea monster that originates from the Wushanko Isles and is featured in the Deadliest Catch quest. In the quest, the player, Jones and 'The Guns' sail out to the Northern Sea to try to catch Thalassus, who appears terrorising all boats that pass by.

As a colossus, Thalassus is an ancient and very long-lived creature, having been alive for at least several thousand years. It has no natural predators, and is feared among fishermen for its hostility towards humans. Anyone unlucky enough to be swallowed whole would be slowly digested in agonising pain over several weeks - a fate that nearly occurred to Jones.

Thalassus has a minor relationship with the three mermaids Tentacle, Urchin and Anemone; these three mermaids rely on the Thalassus for protection from other sea denizens and humans that try to hunt it. The mermaids feed it poison karambwan if it eats something it shouldn't have; the Thalassus will simply spit out whatever it ate when it does so.

Some missions in player-owned ports involve hunting him, and some of them even involve actually befriending the beast.

The Thalassus made a brief appearance in the miniquest Jed Hunter, where it ate Jed "The Iron Link" when he tries to escape from the player.

Hunting Thalassus

After the quest, players can hunt Thalassus ten more times with increasing difficulty for Hunter experience, a total of 46,660 experience. To begin these hunts, talk to Jones outside the bank in the Fishing Guild. During the last three hunts, the sea wind will blow and disorient the player, rotating the camera's viewpoint. Players can easily correct for this by rotating back to face north. Once it has been hunted ten times, Thalassus will flee to another part of the sea and is unable to be hunted again.

Hunting the Thalassus 10 times after the quest is a requirement for obtaining the completionist cape and the master quest cape.

Difficulty	Experience	Mistakes	Limited energy	Compass orientation
1/10	2,510	4	No	No changes.
2/10	2,990		Yes
3/10	3,470
4/10	3,950	3
5/10	4,430
6/10	4,910
7/10	5,380
8/10	5,860			Wind changes compass orientation.
9/10	6,340
10/10	6,820	2
Total	46,660

If the player turns their run energy off then no energy will be consumed. During the activity, 'The Guns' energy is equal to the player's run energy. The salt-water spring in Oo'glog or the salt-water treatment at spa pool in Anachronia base camp spa can be used for 10–25 minutes of practically infinite energy for 'The Guns' to use. The Endurance relic power will have the same effect indefinitely.

While the path changes for each hunt, the location of the shipwrecks is fixed. This blank map may be used as an easier way to track down the Thalassus. It is recommended to mark each shipwreck which leads the player along the trail.

Blank map for tracking down the Thalassus. (Up is North)

Some examples of possible solutions for finding Thalassus are shown below.

Possible solution #1-5 for finding Thalassus.

Possible solution #6-10 for finding Thalassus.

Looting wreckage

Each time players hunt the Thalassus, 27 of the wrecked boats can be looted, though only a maximum of three items may be taken. Each item in the first loot table can only appear once, however items in the second loot table may appear multiple times.

Single appearance items

	Item	Quantity	Rarity	GE price	High Alch
	Coins	5,302	Unknown	5,302	5,302
	Blood rune	16	Unknown	6,272	1,760
	Uncut ruby	1	Unknown	365	60
	Law rune	17	Unknown	3,366	1,275

Multiple appearance items

	Item	Quantity	Rarity	GE price	High Alch
	Green dragonhide	1	Unknown	593	12
	Coins	17–400	Unknown	17–400	17–400
	Raw shrimps	1	Unknown	616	3
	Plank	1	Unknown	459	60
	Ruby	1	Unknown	401	600
	Emerald	1	Unknown	368	300
	Sapphire	1	Unknown	275	150
	Sapphire necklace	1	Unknown	3,422	630
	Adamantite ore	1	Unknown	1,657	50
	Raw rainbow fish	1	Unknown	1,662	72
	Raw shark	1	Unknown	360	180
	Gold bar	1	Unknown	2,369	180
	Gold ore	1	Unknown	1,043	90
	Seaweed	1	Unknown	111	1
	Chisel	1	Unknown	535	8
	Raw bass	1	Unknown	3,359	168
	Raw cod	1	Unknown	2,207	20
	Raw sardine	1	Unknown	706	6
	Bucket	1	Unknown	15	1
	Willow logs	1	Unknown	1,127	24
	Steel bar	1	Unknown	1,820	50
	Ring of duelling (8)	1	Unknown	5,065	765
	Raw lobster	1	Unknown	287	170
	Emerald ring	1	Unknown	4,245	765
	Big fishing net	1	Unknown	1,078	12
	Iron ore	1	Unknown	813	15
	Logs	1	Unknown	1,117	2

Gallery

• 
  Thalassus jumping out of the sea.
• 
  Thalassus throwing Jones back into the boat.
• 
  The Thalassus opening its large mouth.

Achievements

• Deadlier Catch ( 10) – Hunt the Thalassus until it flees for good. (X/11)

Dialogue

This article on a miniquest has an associated transcript page.
Click here for a transcript of possible conversations and other messaging encountered throughout the miniquest.

Mentioned

This list is compiled as a part of an ongoing project and may be incomplete.

Transcripts Thalassus is mentioned in:

• Colossi & the time of colossi

Update history

This information has been compiled as part of the update history project. Some updates may not be included – see here for how to help out!

• patch 3 December 2018 (Update):
  • Improved the size of the Thalassus hunting mini-game interface on mobile.

• patch 26 November 2013 (Update):
  • The wind will now affect the player during the later stages of hunting for Thalassus.

• update 7 June 2011 (Update):
  • Added to game.

Trivia

One can collect loot while hunting.

• The Thalassus was named by a player in the What's My Name? competition. It may be a portmanteau of "thalassophobia" (intense fear of the sea) and "colossus". Thalassophobia derives from the word thálassa (θάλασσα) which in Ancient and Modern Greek means "sea".
• Thalassus bears a striking resemblance to the real world Dunkleosteus, an extinct genus of fishes from the Late Devonian period.