Single-player games like Cthulhu: The Cosmic Abyss
Below are 14 single-player Steam games similar to Cthulhu: The Cosmic Abyss, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Cthulhu: The Cosmic Abyss page.
Ranked picks
- 1

The Alighieri Circle: Dante's Bloodline
Single-player alternative to Cthulhu: The Cosmic Abyss — playable solo, no multiplayer required. Shares Adventure with Cthulhu: The Cosmic Abyss.
The world knows the Divine Comedy as a poem. For your family, it is a prison. As Gabriele Alighieri, you inherit a duty: reseal the gates of Hell. Burdened by fate, you descend into a psychological nightmare where the only escape is to uncover the dark secrets of your ancestors.
- 2

System Says Normal
Single-player alternative to Cthulhu: The Cosmic Abyss — playable solo, no multiplayer required. Shares Adventure with Cthulhu: The Cosmic Abyss.
You were hired to watch. Not to ask questions. Night shift. Corporate building. Cameras, reports, anomalies. Your predecessor left no final report. Now you're going to find out why. Please proceed.
- 3

Strange Horticulture
Single-player alternative to Cthulhu: The Cosmic Abyss — playable solo, no multiplayer required. Shares Adventure with Cthulhu: The Cosmic Abyss.
Strange Horticulture is an occult puzzle game in which you play as the proprietor of a local plant store. Find and identify new plants, pet your cat, speak to a coven, or join a cult. Use your collection of powerful plants to influence the story and unravel Undermere’s dark mysteries.
- 4

Strange Antiquities
Single-player alternative to Cthulhu: The Cosmic Abyss — playable solo, no multiplayer required. Shares Adventure with Cthulhu: The Cosmic Abyss.
Become the custodian of a store dealing in occult antiquities. Explore the quaint and gloomy town of Undermere, where strange goings-on and dark mysteries abound. Find and identify arcane artefacts, use your collection to aid the townsfolk with their unusual problems — and remember to pet your cat!
- 5

The Signifier Director's Cut
Single-player alternative to Cthulhu: The Cosmic Abyss — playable solo, no multiplayer required. Shares Adventure with Cthulhu: The Cosmic Abyss.
This story-driven adventure follows a mystery of death and despair from reality into the surreal realms of objective memories and subjective experiences. Search the mind, solve puzzles, and unravel the dark truth in this psychological thriller.
- 6

Saturnalia
Single-player alternative to Cthulhu: The Cosmic Abyss — playable solo, no multiplayer required. Shares Adventure with Cthulhu: The Cosmic Abyss.
A Single-Player Survival Horror Adventure: play as a cast of characters exploring an isolated village haunted by an ancient ritual—but beware, its labyrinthine roads will change each time you lose all your characters.
- 7

Call of Cthulhu®
Single-player alternative to Cthulhu: The Cosmic Abyss — playable solo, no multiplayer required. Shares Adventure with Cthulhu: The Cosmic Abyss.
1924. Private Investigator Pierce is sent to look into the tragic death of the Hawkins family. Plunge into a world of creeping madness and cosmic horror. Cryptic clues, shadowy figures, and pure terror bar your way as you fight to retain your sanity and solve an otherworldly mystery.
- 8

Dahlia View
Single-player alternative to Cthulhu: The Cosmic Abyss — playable solo, no multiplayer required. Shares Adventure with Cthulhu: The Cosmic Abyss.
A child is missing. The police are failing. And you're a retired detective with a bit too much time on your hands. Time to throw out the rules & do whatever it takes to bring the child home. From the developers of I AM RIPPER, The Occupation & Ether One.
- 9

The Shore
Single-player alternative to Cthulhu: The Cosmic Abyss — playable solo, no multiplayer required. Shares Adventure with Cthulhu: The Cosmic Abyss.
THE SHORE is a first person story driven game with an atmospheric environment and narrations, You will encounter mysterious creatures and unravel the secrets behind them. Strong elements of horror, struggle to survive an unknown world that will make you question your own sanity.
- 10

Sherlock Holmes The Awakened
Single-player alternative to Cthulhu: The Cosmic Abyss — playable solo, no multiplayer required. Shares Adventure with Cthulhu: The Cosmic Abyss.
Experience a nerve-racking Lovecraftian adventure, rebuilt from the ground up with modern graphics and gameplay. Become Sherlock Holmes, and find yourself at the heart of the terrifying Cthulhu Mythos as you investigate a series of mysterious disappearances in Europe and the US.
- 11

Call of Cthulhu®: Dark Corners of the Earth
Single-player alternative to Cthulhu: The Cosmic Abyss — playable solo, no multiplayer required.
Call of Cthulhu: Dark Corners of the Earth is a first-person horror game that combines intense action and adventure elements.
- 12

ROUTINE
Single-player alternative to Cthulhu: The Cosmic Abyss — playable solo, no multiplayer required. Shares Adventure with Cthulhu: The Cosmic Abyss.
ROUTINE is a First Person Sci-Fi Horror set on an abandoned lunar base designed around an 80s vision of the future. Explore and investigate your surroundings as you survive against unknown threats.
- 13

The Council
Single-player alternative to Cthulhu: The Cosmic Abyss — playable solo, no multiplayer required. Shares Adventure with Cthulhu: The Cosmic Abyss.
Experience a Narrative Adventure where your choices and character growth truly matter. As a member of a 1793 secret society, live a tale of intrigue and manipulation on the hunt for your missing mother.
- 14

Vampire: The Masquerade – Swansong
Single-player alternative to Cthulhu: The Cosmic Abyss — playable solo, no multiplayer required. Shares Adventure with Cthulhu: The Cosmic Abyss.
Play as 3 vampires, wield their powers wisely, and strike the right balance between your human and animal side in a heart-pounding story in which your choices will decide the fate of Boston.