Stirring Abyss
Released Oct 2020
Stirring Abyss is an indie tactical squad-based game with strong RPG elements in which you uncover the ancient mysteries of the depths depicted in the classic vein of Lovecraftian horror.
88% positive · 436 reviews
Done
All announced content has been released
High confidence
Done
All announced content has been released
High confidence
Where to buy
Steam $24.99 IndieGala Steam key $24.99
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Evaluation
Stirring Abyss launched on October 29, 2020 as a complete, self-contained tactical RPG with 13 story missions, side quests, and an Endless Mode. Following launch, the developer shipped several patches addressing bugs and balance, culminating in the Harvester Patch on February 24, 2021 — a meaningful content update adding a new enemy type and new maps. A smaller balance and bug fix patch (v1.06.01) followed on January 5, 2022, which is the last official communication from the developer on record. The only DLC ever released is the game's soundtrack (November 1, 2021), which is a non-gameplay item. There are no unreleased DLC entries, no announced future content, no roadmap, and no developer statements indicating ongoing development plans. Developer communication has been silent since January 5, 2022. Given that the game launched as a complete narrative experience, the post-launch update history has concluded, and no further content has been signaled in over four years, the game is best understood as a finished product.
Evidence
Harvester Patch (v1.06) shipped, adding a new enemy type and two new maps to both Story and Endless modes.
Game launched with a full, complete package: 13 story missions, side quests, Endless Mode, and 4 difficulty levels.
Content
1 of 1 released · no outstanding content
Media
Details
Developer
Publisher
Slitherine Ltd.
Achievements
32
Platform
Windows
Controller
—
Steam Deck
Unsupported
Players
Single-player
About this game
Stirring Abyss is an indie tactical squad-based game with strong RPG elements in which you uncover the ancient mysteries of the depths depicted in the classic vein of Lovecraftian horror.
You take charge of the surviving crew of the USS Salem, a U.S. Navy submarine that sinks while on a top secret research mission during the early years of the Cold War. They find themselves surrounded by the ruins of a forgotten civilization, their vessel too badly damaged to escape the seabed.

In Story Mode, you slowly unravel the mysteries of the depths in a desperate quest to rescue your missing crewmembers and fix the crippled Salem. The choices you make determine the fate of your crew - and the entire world.

Every expedition lives or dies by the strength of its crew. You have a diverse array of character traits and skills at your disposal, each opening exciting new options in both combat and in story events. As you delve ever deeper, you may also subject your crew to powerful but grisly mutations; the price of survival is high, and no one escapes the abyss unchanged.

The horror and the void which hide in deep waters can become too much to bear, and your crew may experience episodes of exhaustion and insanity. Will their psyche get stronger, or will it be forever damaged? A game of dice with Fate itself will determine the outcome.

Salvaged resources can be turned into weapons, armor, or other useful supplies - or they can be used to repair and upgrade the Salem, giving your crew a crucial edge in the fight for survival. The more you explore the abyss during the missions, the more chances you have to find the lost treasures of the deep.

The hauntingly beautiful environment holds many secrets and mysteries to explore, but danger lurks just outside the feeble circles of light you bring with you. Be wise, and use your skills to scout the black waters and light up the path: unseen terrors may be hiding just out of sight.

The Endless Mode pits your crew in a roguelike battle against an army of neverending enemies that only grow stronger as you progress. It is the ultimate test of strategic ability, as you not only choose how to improve your own squad, but also pick your poison as to what powers your foes gain.

Last evaluated Jun 25, 2026
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