Single-player games like House of Anomalies
Below are 12 single-player Steam games similar to House of Anomalies, 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 House of Anomalies page.
Ranked picks
- 1

OverNight
Single-player alternative to House of Anomalies — playable solo, no multiplayer required. Shares Early Access with House of Anomalies.
OverNight is a multiplayer co-op Ghost Hunting horror with multiple Ghosts per session. Explore some of the most haunted locations with your friends, using a variety of paranormal equipment, engage in rituals, and attempt haunted communications to connect with the other side.
- 2

Expedition to Madness
Single-player alternative to House of Anomalies — playable solo, no multiplayer required. Shares Early Access with House of Anomalies.
1–4 player co-op Lovecraftian horror. Investigate paranormal phenomena across unstable dimensions, identify the entity haunting each world, extract primordial energy and escape before the wormhole collapses.
- 3

The Maze Project
Single-player alternative to House of Anomalies — playable solo, no multiplayer required. Shares Early Access with House of Anomalies.
The Maze Project is a psychological horror game set in a dark, creepy maze. Unaware of how you found yourself here, you must escape from this twisted nightmare. Survive from the dark manifestations that lurk around the maze waiting for every opportunity to get you, and uncover the hidden secrets.
- 4

Dark Past
Single-player alternative to House of Anomalies — playable solo, no multiplayer required. Shares Early Access with House of Anomalies.
Dark Past is based on psychological horror by paranormal activity occurring during your investigations. Play solo or up to 4 players to try and solve the mystery of what entity is left behind.
- 5

The Hauntings
Single-player alternative to House of Anomalies — playable solo, no multiplayer required. Shares Casual with House of Anomalies.
The Hauntings is a 1-4 player online co-op investigation and exorcism game. Using a wide range of paranormal investigation equipment your group must try and successfully discover the source of the haunting and proceed to remove the threat from the area!
- 6

Mama's Sleeping Angels
Single-player alternative to House of Anomalies — playable solo, no multiplayer required.
A 1 to 4 player Y2K dream-exploration game. Free your imaginary friends trapped to eternal sleep by the goddess Mama. Collect cursed items and use weapons to face the monsters in Mama's dreams.
- 7

Phasmophobia
Single-player alternative to House of Anomalies — playable solo, no multiplayer required. Shares Early Access with House of Anomalies.
Phasmophobia is a 4 player online co-op psychological horror. Paranormal activity is on the rise and it’s up to you and your team to use all the ghost-hunting equipment at your disposal in order to gather as much evidence as you can.
- 8

Pacify
Single-player alternative to House of Anomalies — playable solo, no multiplayer required.
An online co-op horror game where you pacify, weaken and capture supernatural creatures for PAH Inc. Each level has a different story, unique monsters, and multiple endings. Play single player or together with up to 6 friends. Includes proximity voice chat with fun effects.
- 9

Castle Explorer
Single-player alternative to House of Anomalies — playable solo, no multiplayer required. Shares Casual with House of Anomalies.
Castle Explorer - The Magical board game for 1 to 8 players. Set in a vibrant fantasy realm where players take on the roles of courageous heroes willing to brave the legendary dangers of the castle. Fortune awaits those able to reach the dragon’s lair and get out alive.
- 10

Dog Fight Super Ultra Deluxe
Single-player alternative to House of Anomalies — playable solo, no multiplayer required. Shares Casual with House of Anomalies.
Take to the skies in this fast paced, aerial combat game featuring blazing gameplay. Keep your home safe solo against a swarm of UFOs or compete against other players in online multiplayer modes.
- 11

MightyKingdom
Single-player alternative to House of Anomalies — playable solo, no multiplayer required.
In a mythical realm, six ancient gods, battle for dominion. Strategically claim lands, outmaneuver rivals, and rise as the supreme power in this fast-paced conquest of territories—solo or in asynchronous online multiplayer.
- 12

Jump Or Drown
Single-player alternative to House of Anomalies — playable solo, no multiplayer required. Shares Casual with House of Anomalies.
A survival platformer for 1–6 players where you hop across floating wreckage after a pirate shipwreck—play solo or online with friends to race for safety, collect items, and earn achievements.