20,000 Miles Under the Sea

First-person idle horror on a descent toward the Mariana Trench

CreaTeam · Released Jul 27, 2020

Reviews: Mixed; 40% of 177
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 28, 2026
Steam Deck: Untested
Last update on Steam: 6 years ago; Aug 9, 2020
Minimum PC: GTX 460; 4 GB RAM · 0.3 GB disk; Full requirements

What is 20,000 Miles Under the Sea?

This single-player idle horror game follows a diver in first person toward the bottom of the Mariana Trench, where a creature lurks. You watch sea life as you sink, continue descending with the game minimized, or stop early and leave a named marker at your depth.

For you if...

+you enjoy slow, hands-off games with an underwater setting

Not for you if...

−you want frequent decisions and active exploration

What players say

40% of 177 reviews are positive

Players praise the underwater scenery, but recurring complaints center on crashes and a lack of things to do.

Screenshots and trailer

20,000 Miles Under the Sea system requirements

Minimum: GTX 460, 4 GB RAM, 0.3 GB of disk space.

As published by the developer.

Can my PC run 20,000 Miles Under the Sea?

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Minimum

OS: Windows 7 or later
Processor: Any quad-thread CPU
Graphics: Nvidia GTX 460 2GB or better
Memory: 4 GB RAM
Storage: 350 MB available space
DirectX: Version 11

Does 20,000 Miles Under the Sea have co-op or multiplayer?

No: single-player only, no multiplayer modes declared.

Single-player

Does 20,000 Miles Under the Sea run on Steam Deck?

Untested Not yet tested by Valve on Steam Deck.

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows
Achievements: 28
Steam features: Family Sharing
Languages: Text only: English, French, Italian, German, Spanish - Spain, Traditional Chinese, Simplified Chinese, Korean, Dutch, Polish, Portuguese - Portugal, Russian, Turkish, Czech, Swedish, Japanese.

Does 20,000 Miles Under the Sea use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 27, 2026. How to filter AI games on Steam