Single-player games like What You Didn't See
Below are 8 single-player Steam games similar to What You Didn't See, 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 What You Didn't See page.
Ranked picks
- 1
Evil Ritual - Horror Escape
Single-player alternative to What You Didn't See — playable solo, no multiplayer required. Shares Action and Indie with What You Didn't See.
You woke up in a cold and scary dungeon, and you don't know how you got there. After examining the situation and finding an old lamp, you try to get out, but you meet on your way: screamers, notes and various objects. Later, you realize that you have become part of an evil ritual!
- 2
Mirror Forge
Single-player alternative to What You Didn't See — playable solo, no multiplayer required. Shares Indie and Adventure with What You Didn't See.
Mirror Forge is a first-person psychological survival horror game. Roam between realities of fear, madness & machinery. Solve puzzles, explore an atmospheric world, survive horrifying entities.
- 3
Heart attack
Single-player alternative to What You Didn't See — playable solo, no multiplayer required. Shares Action and Adventure with What You Didn't See.
There are ghosts in the dark, in order to survive you need to light your way, but all the items for this are limited.
- 4
Who Knocks
Single-player alternative to What You Didn't See — playable solo, no multiplayer required. Shares Action and Indie with What You Didn't See.
Who Knocks is a first person psychological horror game that will make your nightmares come true. You have just moved into a new home. Welcome the presences that will knock at your door. Solve puzzles, explore the environment and fight your nightmares.
- 5
The Backrooms: Survival
Single-player alternative to What You Didn't See — playable solo, no multiplayer required. Shares Action and Indie with What You Didn't See.
Survival horror with roguelike elements. Explore randomized levels with different items and entities while trying to maintain your thirst, hunger, and sanity, ensuring a new experience every time. Play alone or with up to TEN friends online! Cross-platform multiplayer with Nintendo Switch.
- 6
I'm on Observation Duty 3
Single-player alternative to What You Didn't See — playable solo, no multiplayer required. Shares Indie and Adventure with What You Didn't See.
A thrilling psychological horror game. Your job is to look for anomalies in a haunted house. If you see anyhting suspicious (furniture moving, extra objects, intruders), take a photo and send a report. Includes both VR- (windows only) and non-VR (windows, mac, linux)-versions.
- 7
Transliminal: Beyond The Backrooms
Single-player alternative to What You Didn't See — playable solo, no multiplayer required. Shares Action and Indie with What You Didn't See.
An unsettling rogue-lite survival horror adventure. Iconic levels reshape around you. Classic and original entities lurk as greater beings bid for your favor. Collect relics and strange items. Grow stronger. Survive, escape, or claim more uncertain fates. Fall in. Get lost. Go beyond The Backrooms.
- 8
Syndrome
Single-player alternative to What You Didn't See — playable solo, no multiplayer required. Shares Action and Adventure with What You Didn't See.
Syndrome, a sci-fi survival horror game that places you in a living hell inside a doomed starship. Find out what happened to your lost crew. Run. Hide. Fight. Survive.