Single-player games like Thekku Island
Below are 9 single-player Steam games similar to Thekku Island, 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 Thekku Island page.
Ranked picks
- 1

Apartment No 129
Single-player alternative to Thekku Island — playable solo, no multiplayer required. Shares Adventure with Thekku Island.
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.
- 2

Unmourned
Single-player alternative to Thekku Island — playable solo, no multiplayer required. Shares Adventure with Thekku Island.
Unmourned is a first-person psychological horror game where Jason moves into a new house only to be haunted by escalating paranormal events. Driven by fear, he must uncover the truth behind the previous owners' disappearance. Can he solve the mystery before it's too late?
- 3

Joyville 2
Single-player alternative to Thekku Island — playable solo, no multiplayer required. Shares Adventure with Thekku Island.
Joyville 2 is a first-person horror puzzle-adventure game set in an abandoned children's camp. Explore two parallel worlds where the joy of the past meets present horrors. Uncover the camp's dark secrets, face magical yet dangerous creatures, and discover the truth behind events from decades ago.
- 4

The Occultist
Single-player alternative to Thekku Island — playable solo, no multiplayer required. Shares Adventure with Thekku Island.
The Occultist is a first-person narrative thriller. You play as Alan Rebels, a paranormal investigator who travels to an abandoned British island after his father's disappearance. Explore Godstone island, face supernatural entities, and uncover long-buried occult rituals.
- 5

Clink
Single-player alternative to Thekku Island — playable solo, no multiplayer required. Shares Adventure with Thekku Island.
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?
- 6

The Haunted Building
Single-player alternative to Thekku Island — playable solo, no multiplayer required. Shares Adventure with Thekku Island.
A 90s Hong Kong public housing block hides twisted tenants, buried truths, and ghosts. As security guard Lee Shing, your choices shape the story and unlock multiple endings. A mystery full of foreshadowing—some truths can only be uncovered through repeated playthroughs.
- 7

Pacify
Single-player alternative to Thekku Island — playable solo, no multiplayer required. Shares Adventure with Thekku Island.
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.
- 8

Skinfreak
Single-player alternative to Thekku Island — playable solo, no multiplayer required. Shares Adventure with Thekku Island.
The city’s most disturbing serial killer is at large and has his sights set on Belle. Can she escape this maniac’s fleshy, rotting clutches? Or will she lose her skin to this sicko’s collection?
- 9

Thekku Island: Blood Dawn
Single-player alternative to Thekku Island — playable solo, no multiplayer required. Shares Adventure with Thekku Island.
Investigate the disappearance of forest rangers in a remote Kerala forest. What begins as a routine missing-person case soon becomes a night of mystery, folklore, and psychological horror.