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Tethyscope header art

Tethyscope

Explore our planet's ocean to discover animals, plants, and shipwrecks. Take photographs to document your findings and sell them to fund upgrades to your submarine.

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Release
May 18, 2026
75 days ago
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Search Google: Who developed Tethyscope?Developer scaleThe operating scale of the game's developer.
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Search Google: Is Tethyscope self-published or published by Chris Madsen?Publisher statusHow the game's publishing relationship is classified.
Search Google: How is Tethyscope and Chris Madsen funded?FundingThe known source of funding behind the game.
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Search Google: What is the release status of Tethyscope?Release statusWhether and how the game has been released.

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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.