Tharis Island

From The Cycle: Frontier Wiki

Tharis Island, also known as "map 3", is an island far off the coast of Bright Sands on Fortuna III. It was introduced to the game with the launch of Season 2.

Map view of Tharis Island

The location is intended to be the most challenging and tense in the game. It is unlocked after finishing any of:


Tharis Island hosts a number of abandoned faction bases, lush ravines, alien Progenitor artefacts and a labyrinthian cave system.


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Tharis Island enjoys a rapidly switching weather cycle, between dawn, day, dusk, storm, storm peak. One weather cycle on Tharis Island lasts 25min 40sec. This is shorter compared to Bright Sands and Crescent Falls, which are both 38min 40sec long. Prospectors are only able to spawn in the Match during the dawn and day. The Match starts in the day phase. It then cycles through them in order for the entire time the match is up, which is typically 6 hours.

  • Day ( 11min )
  • Dusk ( 6min 40sec)
  • Storm ( 3min )
  • Storm Peak ( 1min 40sec)
  • Dawn ( 3min 20sec)


Tharis Island contains many places of interest. Below is a list of all locations currently found on the Tharis Island map.

Named Locations

These locations have a name shown on the in-game map.

The Forge

Deep in the caverns of Tharis Island is The Forge, an ancient progenitor machine that can be used to alter gear and forge ingots out of Tharis Iron, with a chance of giving Abyss Alloy and Progenitor Slag as a byproduct

Other Locations

These locations are not named on the in-game map but are still visited during Missions.


Tharis Island was originally discovered by Korolev logo colored.pngKorolev years before the Cycle storm hit.

Large parts of the cave system remain unexplored. Those who went too deep either lost their lives in the caves, or came back mad.

Thirty years after the evacuation of Tharis Island, with the opening of a new window in the storm, prospectors now have the chance to explore the island and uncover its secrets.

Image Gallery

Update history

Patch 3.4.0
  • Storm cycles on Tharis Island have been shortened by lowering the time between storms from 25 minutes to 21 minutes to make forging feel less tedious. Duration of the storm remains unaffected
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