Stirring Abyss

Turn-based squad tactics about surviving Lovecraftian threats beneath the sea

Sleepy Sentry, K-Project · Published by Slitherine Ltd. · Released Oct 29, 2020

As of Oct 28, 2026: -60% right now, $9.99

Reviews: Very Positive; 87% of 341
Recent reviews: Not enough recent
Players: 1; daily peak, Oct 28, 2026
Steam Deck: Unsupported
Last update on Steam: 1 year ago; Oct 14, 2025
Minimum PC: OpenGL 4.5-compatible; 2 GB RAM · 1 GB disk; Full requirements

What is Stirring Abyss?

Stirring Abyss is an isometric tactical RPG about a Cold War submarine crew stranded among ancient underwater ruins. You lead missions to rescue crewmates, fight turn-based battles, and salvage resources to repair and upgrade the submarine. A separate roguelike Endless Mode sends increasingly strong enemies against your squad.

For you if...

+you enjoy shaping a squad through skills and equipment

Not for you if...

−you prefer real-time action to turn-based planning
−you want a lighthearted setting without psychological horror

What players say

87% of 341 reviews are positive

Players praise the underwater atmosphere, music, and tactical combat. Some find the campaign too short, and opinions differ on the difficulty.

Screenshots and trailer

Stirring Abyss system requirements

Minimum: OpenGL 4.5-compatible, 2 GB RAM, 1 GB of disk space.

As published by the developer.

Can my PC run Stirring Abyss?

Tell us your graphics card once and every game page will answer this for you.

Set up my PC →

Minimum

OS: Windows 8
Processor: 2 GHz Processor or Equivalent
Graphics: OpenGL 4.5-compatible, 512 MB video memory
Memory: 2 GB RAM
Storage: 1 GB available space
DirectX: Version 9.0c

Does Stirring Abyss have co-op or multiplayer?

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

Single-player

Does Stirring Abyss run on Steam Deck?

Unsupported No: Valve rates it Unsupported on Steam Deck.

Not supported on SteamOS

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows
Achievements: 32
Steam features: Cloud saves, Family Sharing
Languages: Text only: English, German, Spanish - Spain, Russian, Simplified Chinese, French.

Does Stirring Abyss 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