The location is intended to be the most challenging and tense in the game. It is unlocked after finishing any of:
- Race to the Bottom part 2 (ICA)
- In a Deep Dark Hole part 2 (Korolev)
- The Progenitor Device part 2 (Osiris)
Tharis Island hosts a number of abandoned faction bases, lush ravines, alien Progenitor artefacts and a labyrinthian cave system.
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.
Tharis Island contains many places of interest. Below is a list of all locations currently found on the Tharis Island map.
These locations have a name shown on the in-game map.
- Osiris Research Center
- Osiris Labs
- Osiris Offices
- Storm Pillar
- Sparkling Pools
- Cave of Stars
- Korolev Quarry
- Korolev Docks
- Korolev Island HQ
- Korolev Core Outpost
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
These locations are not named on the in-game map but are still visited during Missions.
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.
- 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