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

The Girl in the Window
Single-player alternative to Unwanted Experiment — playable solo, no multiplayer required. Shares Indie and Adventure with Unwanted Experiment.
A girl appears at the window of an abandoned house, untouched for 20 years. Enter its eerie rooms, solve puzzles, uncover hidden clues, and discover the dark secret that began the mysteries of Hidden Town.
- 2

Nowhere House
Single-player alternative to Unwanted Experiment — playable solo, no multiplayer required. Shares Indie and Adventure with Unwanted Experiment.
Enter the cursed house of a vanished witch and solve puzzles across three parallel worlds. A dark point-and-click escape adventure full of mystery, trapped souls, hidden secrets, and eerie choices that shape your fate.
- 3

Ghost Case
Single-player alternative to Unwanted Experiment — playable solo, no multiplayer required. Shares Indie and Adventure with Unwanted Experiment.
Reopen a 20-year-old murder case after receiving messages from the afterlife. Explore Hidden Town, solve puzzles, question suspects, and uncover the truth in this dark point-and-click detective mystery.
- 4

Haunted Laia
Single-player alternative to Unwanted Experiment — playable solo, no multiplayer required. Shares Indie and Adventure with Unwanted Experiment.
A family disappears after being haunted by strange presences in their new home. Explore Laia’s memories, solve eerie puzzles across mysterious places, and uncover the dark truth behind what happened to them.
- 5

Another Shadow
Single-player alternative to Unwanted Experiment — playable solo, no multiplayer required. Shares Indie and Adventure with Unwanted Experiment.
Bastian is trapped in darkness by an ancient curse, and only Carissa can bring him back. Switch between two connected worlds, solve eerie puzzles, uncover hidden memories, and reveal the shadow haunting their new home.
- 6

Escape from the Shadows
Single-player alternative to Unwanted Experiment — playable solo, no multiplayer required. Shares Indie and Adventure with Unwanted Experiment.
Detective Ren Larsen must rescue Bastian from a world of shadows before he is lost forever. Explore two connected realms, solve eerie puzzles, and uncover the secrets of Penumbra in this dark point-and-click mystery.
- 7

Beyond the Room
Single-player alternative to Unwanted Experiment — playable solo, no multiplayer required. Shares Indie and Adventure with Unwanted Experiment.
Enter an abandoned building haunted by rituals, witchcraft, and a dark past. Follow the signals from the fifth floor, solve eerie puzzles, rescue a trapped soul, and uncover the truth behind the spirits beyond the room
- 8

Hidden Memories
Single-player alternative to Unwanted Experiment — playable solo, no multiplayer required. Shares Indie and Adventure with Unwanted Experiment.
Lucian wakes up trapped with no memory of how he got there. Explore fragments of the previous night, solve dark puzzles, uncover hidden clues, and discover the terrifying truth buried within his forgotten memories.