Single-player games like 15th Prison
Below are 8 single-player Steam games similar to 15th Prison, 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 15th Prison page.
Ranked picks
- 1
15th Floor
Single-player alternative to 15th Prison — playable solo, no multiplayer required. Shares Action and Indie with 15th Prison.
You are stuck in an apartment building with endless floors full of fear. Observe your surroundings carefully to climb to the 15th floor and reach the roof of the building. Do not ignore any abnormalities. Your carelessness may result in death.
- 2
Wardwell House
Single-player alternative to 15th Prison — playable solo, no multiplayer required. Shares Adventure and Simulation with 15th Prison.
A storm washed you upon the shore of a mysterious island with a horrific past. A terrifying first-person atmospheric horror game.
- 3
Anomalous Railroad Crossing
Single-player alternative to 15th Prison — playable solo, no multiplayer required. Shares Indie and Adventure with 15th Prison.
"Anomalous Railroad Crossing" is an escape game where you search for strange happenings, set at Japan's most famous railroad crossing. - You suddenly realize that you're standing on a road leading to a railroad crossing with an ocean view. Escape from a world invaded by strange happenings!
- 4
Welcome to the Chop House
Single-player alternative to 15th Prison — playable solo, no multiplayer required. Shares Action and Adventure with 15th Prison.
Sneak, create distractions, use parkour and solve puzzles to escape this First-Person survival horror slaughterhouse. Trapped in a factory farm for humans you must survive being hunted by your captors.
- 5
迷离 Blurred
Single-player alternative to 15th Prison — playable solo, no multiplayer required. Shares Indie and Adventure with 15th Prison.
迷离是一款氛围感与沉浸感极强的第一人称恐怖解密射击游戏，几年前，一家人误入了一个神秘村落，几年后，这家人相继自杀。你受人委托前去调查这桩诡异迷离的凶案，在凶案地点，这里的煞气压的你喘不过气，并在深入的探索中发现了一个恐怖的真相。
- 6
Clink
Single-player alternative to 15th Prison — playable solo, no multiplayer required. Shares Indie and Adventure with 15th Prison.
You are a lonely woman, secluded in a house with your cat... and the secrets of the past. What hides within your mind — illness, or something otherworldly? Nightmares and reality intertwine… everything is so foggy. Do you have the courage to remember what happened?
- 7
Apartment No 129
Single-player alternative to 15th Prison — playable solo, no multiplayer required. Shares Action and Indie with 15th Prison.
Emir, who has an interest in mysterious events, steps alone into the abandoned apartment known as "Apartment No 129" to trace the trail of a paranormal event that occurred in 2009 and shook the country. However, he will find himself in an unexpected confrontation within this horror apartment.
- 8
April 24th
Single-player alternative to 15th Prison — playable solo, no multiplayer required. Shares Indie and Adventure with 15th Prison.
The main character is an experienced journalist who always strives to uncover the truth. He manages to gain access to the house, which is guarded by the police.