Single-player games like Devil's Door
Below are 8 single-player Steam games similar to Devil's Door, 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 Devil's Door page.
Ranked picks
- 1
Calvar - The Darkest Gate
Single-player alternative to Devil's Door — playable solo, no multiplayer required. Shares Action and Indie with Devil's Door.
Calvar – The Darkest Gate is a relentless first-person horror descent into madness, illusion, and decay. Crafted by a dedicated two-man team, this passion project drags you into a world where reality fractures and every step feels forbidden. Nothing is certain. No one is safe.
- 2
Ralkoz
Single-player alternative to Devil's Door — playable solo, no multiplayer required. Shares Action and Indie with Devil's Door.
Ralkoz is a single-player first-person action-horror game where you follow the trail of a missing research team. Track a mysterious radio signal, fight nightmares, and uncover the truth behind ancient ruins before reality falls apart. Survival is not enough. You must find the truth.
- 3
Spiritus Sancti
Single-player alternative to Devil's Door — playable solo, no multiplayer required. Shares Action and Indie with Devil's Door.
Spiritus Sancti is a first-person psychological horror where your voice is your weapon. Speak sacred rites through your microphone to repel, stun, and exorcise the forces of darkness. Every encounter is real-time, every word a test of faith. An experience like no other.
- 4
Neuro Cell
Single-player alternative to Devil's Door — playable solo, no multiplayer required. Shares Action and Adventure with Devil's Door.
A survival horror game set in a dark, foggy city. Survive against fast, aggressive enemies whose brains are controlled by a rogue computer network. Manage your low ammo, explore dangerous streets, and stop the system before it hunts you down.
- 5
Insomnia is Coming
Single-player alternative to Devil's Door — playable solo, no multiplayer required. Shares Action and Indie with Devil's Door.
INSOMNIA IS COMING. You won’t sleep. In a world without rules, you sink into chaos – drugs, alcohol, betrayal. Each choice drags you deeper. A psychological FPS horror about guilt and sin, where sleepless nights blur reality and force you to face truth… or the end.
- 6
Mumble Pines: The Arrival
Single-player alternative to Devil's Door — playable solo, no multiplayer required. Shares Action and Indie with Devil's Door.
In this first-person story-driven horror game, you take a job as a janitor to access a run-down island summer camp that got shut down, after the dissapearence of your younger brother, which was only one of many incidents. It’s up to you to uncover the island’s buried secrets.
- 7
Agony
Single-player alternative to Devil's Door — playable solo, no multiplayer required. Shares Action and Indie with Devil's Door.
Agony is a first-person, survival horror set in hell. You will begin your journey as a tormented soul within the depths of hell without any memories about your past. The special ability to control people on your path, and possess demons, gives you the measures to survive.
- 8
Pyromaniac
Single-player alternative to Devil's Door — playable solo, no multiplayer required. Shares Action and Indie with Devil's Door.
Play as Nikolas, a 20-year-old guy who found himself lost in an abandoned city... or so he thought it was at first. Explore the city, defend yourself from monsters, and find answers to what is really going on.