Single-player games like Altarium
Below are 10 single-player Steam games similar to Altarium, 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 Altarium page.
Ranked picks
- 1
Now You See - A Hand Painted Horror Adventure
Single-player alternative to Altarium — playable solo, no multiplayer required. Shares Adventure with Altarium.
NoW YoU SEE is a story driven, first-person, point & click, horror adventure. You must escape!!! Explore the house, solve fiendish puzzles, uncover horrible secrets and get ready to meet the family. STORY. PUZZLES. GORE.
- 2
File Destined
Single-player alternative to Altarium — playable solo, no multiplayer required. Shares Adventure with Altarium.
Can this last case of Oliver, all be just a small part of a bigger picture? Gather clues, unravel the mystery behind the case and uncover the truth.
- 3
Inout
Single-player alternative to Altarium — playable solo, no multiplayer required.
INOUT is a cooperative horror game for 1-4 players. For years, the locals have been afraid of an old mansion in Madyland. A possessed maniac and an ancient evil have settled here. Become a member of a team of exorcists and expel the evil force!
- 4
SOMA
Single-player alternative to Altarium — playable solo, no multiplayer required. Shares Adventure with Altarium.
From the creators of Amnesia: The Dark Descent comes SOMA, a sci-fi horror game set below the waves of the Atlantic ocean. Struggle to survive a hostile world that will make you question your very existence.
- 5
Maid of Sker
Single-player alternative to Altarium — playable solo, no multiplayer required. Shares Adventure with Altarium.
Maid of Sker is a first-person survival horror, set in a remote hotel with a gory and macabre history from Welsh folklore. Brave the nightmares of the Quiet Ones. Do not panic…don’t even breathe!
- 6
Resident Evil Village
Single-player alternative to Altarium — playable solo, no multiplayer required.
Experience survival horror like never before in the 8th major installment in the Resident Evil franchise - Resident Evil Village. With detailed graphics, intense first-person action and masterful storytelling, the terror has never felt more realistic.
- 7
Outlast 2
Single-player alternative to Altarium — playable solo, no multiplayer required. Shares Adventure with Altarium.
Outlast 2 introduces you to Sullivan Knoth and his followers, who left our wicked world behind to give birth to Temple Gate, a town, deep in the wilderness and hidden from civilization. Knoth and his flock are preparing for the tribulations of the end of times and you’re right in the thick of it.
- 8
Resident Evil 7 Biohazard
Single-player alternative to Altarium — playable solo, no multiplayer required. Shares Adventure with Altarium.
Fear and isolation seep through the walls of an abandoned southern farmhouse. "7" marks a new beginning for survival horror with the “Isolated View” of the visceral new first-person perspective.
- 9
Westfall
Single-player alternative to Altarium — playable solo, no multiplayer required. Shares Adventure with Altarium.
Westfall is a cooperative/collaborative horror game where you collect precious stones from cursed towns of the wild west.
- 10
Deep
Single-player alternative to Altarium — playable solo, no multiplayer required. Shares Adventure with Altarium.
Deep is a chaotic, physics-based 4-player underwater co-op. Lower Grandpa's capsule to the ocean floor! Build rope winches, manage oxygen, feed Grandpa, and try not to smash his pod. Did you die? Come back as a fish to help—or troll—your surviving friends!