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About Tides of Tethys

Tides of Tethys - about the game
Lead Knights on expeditions into the uncharted depths of an alien Abyss in this underwater roguelite simulation. Players explore procedural worlds that shift with every run, build modular outposts carried by a Mothership, and retrieve ancient Relics to upgrade tools, vehicles, and defenses. Select perks before each dive to counter dangers like darkness, shifting currents, and sudden events. Victories unlock new perks, factions, and customizations to rebuild a lost kingdom and unify Tethys houses. Failures yield knowledge for future attempts. Strategy and indie fans who enjoy adaptive survival and base-building in ever-changing environments will find replayable challenges here.

Tides of Tethys is an immersive underwater roguelite simulation game centered around exploring and surviving the uncharted depths of an alien world, while building and maintaining modular outposts.

Players will lead expeditions of Knights into the unknown, in the hopes of rebuilding their long lost kingdom and unifying the houses of Tethys once again.

As they dive further into the Abyss, they will discover compelling new places, uncover lost technologies, and conquer a variety of dangers that lurk beneath the surface.
Features :
  • Explore an ever changing procedural world, where no two expeditions are the same, and delve deeper into the uncharted trenches of the Abyss
  • Build modular outposts, and transport parts of it with in your Mothership to help you survive the challenges of the deep
  • Discover ancient Relics to uncover lost technology for your outposts as well as tools and vehicles for your Knights
  • During each expedition, choose between meaningful perks to help you survive the trenches
  • Rebuild your Kingdom to its former glory! With each victorious expedition, unlock more perks, tools, factions and customizations
  • Whether it's conditions like darkness, changing current speeds or simply running into events that require you to make snap decisions... What will you do, faced against the unknown?


    DISCOVER THE WORLD OF TETHYS

    The world of Tethys is a dangerous and diverse one.
    With each expedition comes new locations to discover, and with each depth, new challenges to overcome!



    EXPLORE AND ADAPT

    As an expedition leader, you will lead your trusted Knights to explore and retrieve long-lost Relics from the ancient wars that divided the Houses of Tethys..
    Retrieving Relics will allow you to retrofit that technology on your outposts, as well as your Knights and let you adapt to the ever growing challenges of the deep!



    CONQUER THE ABYSS, YOUR WAY

    With each conquest and failure comes knowledge and rewards!
    Will you unlock more ways to navigate the tides, upgrade your mothership to carry over more of your outpost each depth, or maybe try out a run with a newly unlocked House, offering its own set of advantages and challenges?


Interface:
EnglishFrench
Subtitles:
EnglishFrench

Age rating

Unavailable

Minimum:

  • OS: Windows 10
  • Processor: Intel(R) Core(TM) i7-4720HQ
  • Memory: 8 GB RAM
  • Graphics: NVIDIA GeForce GTX 980M
  • DirectX: Version 12
  • Storage: 10 GB available space
  • Additional Notes: Realtek

Recommended:

  • OS: Windows 10/11
  • Processor: Intel(R) Core(TM) i7-5960x
  • Memory: 16 GB RAM
  • Graphics: NVIDIA GeForce RTX 3090
  • DirectX: Version 12
  • Storage: 10 GB available space
  • Additional Notes: Realtek
Historical low
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FAQ

8 questions

Before you start looking for a cheap Tides of Tethys key, check the essentials. Developed by Black Rust LLC. Published by Black Rust LLC. PC released date: Coming Soon. Genres: Strategy, Indie, Simulation, Early Access. Categories: Family Sharing, Single-player, Steam Achievements.

Q

Where to buy a cheap Tides of Tethys Steam key?

Tides of Tethys is free to play! Download it on Steam and start playing instantly.

Tides of Tethys is completely free on Steam. No purchase needed - just download and play. If you are looking for premium DLC or in-game items, check the offers table above.

Our price tracker covers both official retailers and key marketplaces, so you can find Tides of Tethys on sale even outside seasonal promotions. We currently detect 0 active offers from official stores and keyshops. Check the table above, compare against the historical low, and set an alert so you never miss the next price drop.

Based on our data, Tides of Tethys is not currently available on GeForce NOW. You will need to run it locally on your PC. Browse games available on GeForce NOW.

Yes. Tides of Tethys has an official page on the Steam Store, but we currently don't track any third-party offers with Steam DRM. Check back later or set a price alert.

Not at this time. Valve marks Tides of Tethys as Unsupported on Steam Deck. Keep an eye on XD.deals - we track Proton updates and community fixes. Browse games that are Steam Deck Verified or Steam Deck Playable.

Tides of Tethys does not appear to be available on PC Game Pass, EA Play, Ubisoft+ or any other PC subscription service at this time. Your only option is purchasing the game - use XD.deals to find the best price.

No - XD.deals is not a store. We are a price-comparison service that tracks the best Tides of Tethys deals across official stores and verified keyshops. Click "Go to Store" next to any offer and you will be redirected to the retailer's website to complete your purchase.

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