PCGame

Sea Of Radiation 2

Underwater action roguelite about devouring rivals and evolving a fish

NightWalker · Released Nov 29, 2024

ActionCasualIndie

AI-generated content disclosed

Reviews
Mostly Positive
79% of 136
Recent reviews
Not enough recent
Players
1
daily peak, Nov 7, 2026
Steam Deck
Playable
Last update on Steam
7 months ago
Mar 31, 2026
Minimum PC
–
not published

What is Sea Of Radiation 2?

Sea Of Radiation 2 is a 2D underwater action roguelite in which a small fish tries to survive a radiation-contaminated sea. You eat other creatures and absorb radiation to grow, choosing and repositioning organs to change your creature's abilities. Enemies mutate at random as you progress, and Overlord creatures spawn upgraded foes.

For you if...

  • +you enjoy customizing a creature's body as it grows
  • +you like adapting to enemies that mutate unpredictably

Not for you if...

  • −you prefer fixed abilities over building a creature
  • −you want enemy encounters to stay predictable

What players say

79% of 136 reviews are positive

Players call the game fun, but several report progress-blocking bugs and unclear objectives.

Screenshots and trailer

Sea Of Radiation 2 screenshot 1

Sea Of Radiation 2 system requirements

As published by the developer.

Can my PC run Sea Of Radiation 2?

The published requirements do not name a graphics card we can compare.

Set up my PC →

Minimum

OS
Windows 11
DirectX
Version 10

Recommended

OS
Windows 11
DirectX
Version 10

Does Sea Of Radiation 2 have co-op or multiplayer?

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

Does Sea Of Radiation 2 run on Steam Deck?

Playable Playable: it runs on Steam Deck with some adjustments.

  • Default controller config not fully functional
  • Sometimes shows mouse, keyboard or non-Deck controller icons
  • Some in-game text is small and may be hard to read
  • Default graphics settings perform well on Steam Deck

PC version details

DRM
None declared on Steam
Controller
Full controller support
Platforms
Windows
Achievements
20
Steam features
Cloud saves, Family Sharing
Languages
Full audio: English, Simplified Chinese, Traditional Chinese. Text only: French, German, Spanish - Spain, Russian, Japanese, Portuguese - Portugal, Korean.

Does Sea Of Radiation 2 use AI-generated content?

Yes. The developers disclose AI-generated content on the game's Steam page:

Created some game promotional images and icons using AI tools

The statement mentions: Store page & marketing

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 25, 2026. How to filter AI games on Steam

Tags

Recent updates

1 DLC available.

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