Single-player games like The Anomaly Protocol
Below are 8 single-player Steam games similar to The Anomaly Protocol, 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 The Anomaly Protocol page.
Ranked picks
- 1

You Are Grounded
Single-player alternative to The Anomaly Protocol — playable solo, no multiplayer required. Shares Indie with The Anomaly Protocol.
"You Are Grounded" is a short psychological horror-slasher game from a first-person perspective. A terrifying killer clown terrorizes a teenager and his family on Halloween Eve.
- 2

Save Twiks
Single-player alternative to The Anomaly Protocol — playable solo, no multiplayer required. Shares Indie with The Anomaly Protocol.
“Save Twiks” - psychological horror from the first person. The Kitten named Twiks us lost in a giant train and you will have to go though real horror to find it. “Did you hear this? I think he just meowed in next car”.
- 3

Lonely Christmas
Single-player alternative to The Anomaly Protocol — playable solo, no multiplayer required. Shares Indie with The Anomaly Protocol.
It’s a story about an 8-year-old boy Kevin who was left alone at home at Christmas. Protect your house from a crazy robber and wait for your parents. Can you handle with it? We’ll find out.
- 4

Sasaeng | 사생
Single-player alternative to The Anomaly Protocol — playable solo, no multiplayer required. Shares Indie with The Anomaly Protocol.
A first-person psychological horror game about the life of a K-pop idol. Explore a luxury apartment, Korean streets, and your agency building as you confront the unsettling truth hidden beneath the surface.
- 5

Platform 8
Single-player alternative to The Anomaly Protocol — playable solo, no multiplayer required. Shares Indie with The Anomaly Protocol.
You are trapped on a train that runs forever. Keep an eye out for anomalies and find a way out.
- 6

Shift 87
Single-player alternative to The Anomaly Protocol — playable solo, no multiplayer required. Shares Indie with The Anomaly Protocol.
Your task today: Memorize your environment and report any anomalies. Good luck with your shift! "Shift 87" is an observation horror game with subtle anomalies and unsettling occurrences.
- 7

Clink
Single-player alternative to The Anomaly Protocol — playable solo, no multiplayer required. Shares Indie with The Anomaly Protocol.
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?
- 8

The Cabin Factory
Single-player alternative to The Anomaly Protocol — playable solo, no multiplayer required. Shares Indie with The Anomaly Protocol.
Your job at the Cabin Factory is simple: inspect the cabins and decide on whether they’re haunted or not. If you do find any anomalies, get out…immediately.