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Buy Tethyscope PC Key

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Where can you buy the cheapest Tethyscope key for PC? Check and compare prices from 1 stores among 1 offers on XD.deals. The lowest Tethyscope price on keyshops is at A$4.25 (0% off).

Release: 18 May 2026
Chris Madsen
Chris Madsen
Indie
Keyshops
Unavailable
Buy in Official Store:
A$4.25
Buy in Keyshops:
See price history

Official Stores (1)

DRM:
Steam
Steam
Steam
Tethyscope
Windows
+1
10w ago
DRM:
Steam
Steam
A$4.25
Historical Low Deal
Historical low
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About Tethyscope

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Tethyscope
Tethyscope - about the game

Have you ever wanted to explore the depths of the ocean?

In this submarine simulator, realistic ocean floor bathymetry is home to a range of flora and fauna. Take photographs and sell them to upgrade your submarine - the more species in your photos, the more they are worth!

Observe and record different varieties of animals in your catalogue - an albino blue whale, a giant Japanese spidercrab, and many more...

PLEASE NOTE: I have not yet uploaded a version of TethyScope that works for older machines that do not support Vulkan (modern graphics API). I believe computers newer than 2013 should have support for Vulkan. If you purchase TethyScope and are unable to play it due to this issue, please contact me for a full refund.

Indie Casual Simulation Early Access Family Sharing Single-player Steam Achievements Steam Leaderboards Keyboard Only Option Playable without Timed Input Save Anytime Stereo Sound

Age rating

Unavailable

Tethyscope PC price history

See all
Historical low
Price history from official stores
A$4.25
Steam
2 months ago
Currently lowest: A$4.25 Steam
Price history from keyshops
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Currently lowest: - -
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FAQ

8 questions

Before you start looking for a cheap Tethyscope PC key, check the essentials. Developed by Chris Madsen. Published by Chris Madsen. PC released date: 18 May 2026. Genres: Indie, Casual, Simulation, Early Access. Categories: Family Sharing, Single-player, Steam Achievements, Steam Leaderboards, Keyboard Only Option, Playable without Timed Input, Save Anytime, Stereo Sound.

Q

Where to buy a cheap Tethyscope Steam key or CD key?

Using our price comparison and verified discount codes, you can buy a Tethyscope key for as low as A$4.25. This deal is available at Steam and is among the cheapest offers on the market. All keys listed on XD.deals are delivered digitally and eligible for instant download after payment. Prices already include processing fees and applied promo codes, so you always see the lowest Tethyscope price on PC. Check the Tethyscope price history to buy at the best moment.

As of our last update (we refresh Steam pricing multiple times a day), the Tethyscope Steam price is A$4.25. You can save an extra ~6% by paying with a discounted Steam gift card.

Our price tracker covers both official retailers and key marketplaces, so you can find Tethyscope on sale even outside seasonal promotions. We currently detect 1 active offer 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, Tethyscope is not currently available on GeForce NOW. You will need to run it locally on your PC. Browse games available on GeForce NOW.

Yes. Tethyscope has an official page on the Steam Store. You can also buy a Tethyscope Steam key from third-party sellers. Our price comparison currently includes 1 offer with Steam DRM. Pick one to ensure your Tethyscope download happens on Valve's platform.

Not at this time. Valve marks Tethyscope 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.

Tethyscope 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 Tethyscope 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.

Best prices for Tethyscope

1 Steam Steam Official
A$4.25

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