Single-player games like SymbioPhobiA
Below are 8 single-player Steam games similar to SymbioPhobiA, 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 SymbioPhobiA page.
Ranked picks
- 1

The Last Man
Single-player alternative to SymbioPhobiA — playable solo, no multiplayer required. Shares Action and Indie with SymbioPhobiA.
A topdown survival space horror where a single enemy hit can end your life
- 2

EVIL BELOW™
Single-player alternative to SymbioPhobiA — playable solo, no multiplayer required. Shares Action and Indie with SymbioPhobiA.
Take the role of a mother searching for her child in a mysterious world filled with dark creatures blinded by faith and greed. Prepare to run, hide, kill and survive.
- 3

MOULD
Single-player alternative to SymbioPhobiA — playable solo, no multiplayer required. Shares Action and Indie with SymbioPhobiA.
MOULD is an adventure horror game about a shattered Soviet dream. The Earth is slowly becoming uninhabitable, humanity is gone, and its place has been taken by a monstrous life form, capable of surviving in the planet's new conditions.
- 4

THE DAY I WILL DIE
Single-player alternative to SymbioPhobiA — playable solo, no multiplayer required. Shares Action and Indie with SymbioPhobiA.
Trapped in a misty valley of endless time loops, confront echoes of your childhood and creatures from old tales and legends. Explore forgotten paths stirring subconscious fears, face nightmarish foes, and uncover a story of fading dreams and shadows of adulthood.
- 5

Elysia Sector™: The Unknown
Single-player alternative to SymbioPhobiA — playable solo, no multiplayer required. Shares Action and Indie with SymbioPhobiA.
Embark on a journey beyond humanity's extinction. This Survival Horror plunges you into the boots of Lyraeth Mortis, drifting from the twisted realm of Elysia to the cruel emptiness of Reality. Unveiling the Sector's dark secrets is your only hope for survival.
- 6

The House on Grisewood
Single-player alternative to SymbioPhobiA — playable solo, no multiplayer required. Shares Action and Adventure with SymbioPhobiA.
A top-down survival horror shooter set in a haunted manor. Explore room by room with a failing flashlight, scavenge ammunition and batteries, and fight or evade what stalks the dark. Reach the ballroom and end what laughs there, or hold out in an endless Zombie Survival mode.
- 7

Aftertime
Single-player alternative to SymbioPhobiA — playable solo, no multiplayer required. Shares Action and Indie with SymbioPhobiA.
Experience an epic journey across utterly mutated yet picturesque world caused by a fallen meteorite that released unknown toxins to the atmosphere. In this new age, humans have become zombies and once again, dinosaurs roam the earth. Giant mushrooms and massive creatures are sights to behold.
- 8

Alone Girl
Single-player alternative to SymbioPhobiA — playable solo, no multiplayer required. Shares Action and Indie with SymbioPhobiA.
Become a lone girl, fight against endless hordes of zombies and bugs alone in the apocalypse overrun by aliens and mutated monsters, collect resources to upgrade your arsenal, tear through the darkness and blood with firepower, and experience the pure thrill of adrenaline rushing!