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

Breach Signal
Single-player alternative to House of Anomalies — playable solo, no multiplayer required. Shares Early Access with House of Anomalies.
Breach Signal is a 1-6 player co-op cosmic horror game. As a recruit of the FNA, lead expeditions into strange places and investigate mysterious anomalies that threaten our reality.
- 3

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.
- 4

Have Fun Exploring
Single-player alternative to House of Anomalies — playable solo, no multiplayer required. Shares Early Access with House of Anomalies.
Have Fun Exploring is a 4-player online co-op psychological horror. Urbex livestreaming is booming on the Dark Web, and the WR8 Audience pays well for thrilling content. Investigate abandoned locations to uncover who went missing and identify the ghost they became.
- 5

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.
- 6

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.
- 7

Blood Red
Single-player alternative to House of Anomalies — playable solo, no multiplayer required. Shares Early Access with House of Anomalies.
Blood Red is a co-op survival horror game that can be played with 1-4 players. Figure out the demon and banish it using your special demon hunting kit!
- 8

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!
- 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

Send More Monsters
Single-player alternative to House of Anomalies — playable solo, no multiplayer required.
Command massive armies in a competitive tower war strategy game. Send thousands of monsters to overwhelm the enemy while building, upgrading, and defending your own towers. Play solo or in team battles, adapt your strategy, outlast the enemy, and claim victory.