Single-player games like Marcella Moon: Four Are Watching
Below are 13 single-player Steam games similar to Marcella Moon: Four Are Watching, 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 Marcella Moon: Four Are Watching page.
Ranked picks
- 1

Still Life
Single-player alternative to Marcella Moon: Four Are Watching — playable solo, no multiplayer required.
Still Life 2 also now available!
- 2

Post Mortem
Single-player alternative to Marcella Moon: Four Are Watching — playable solo, no multiplayer required.
After returning to the quiet streets of Paris to pursue a life of painting, Gus Macpherson could not escape his true art…
- 3

Kathy Rain 2: Soothsayer
Single-player alternative to Marcella Moon: Four Are Watching — playable solo, no multiplayer required. Shares Indie with Marcella Moon: Four Are Watching.
In this point-and-click urban thriller, down-and-out private eye Kathy Rain will embark on her most dangerous case yet — the pursuit of the notorious serial killer known as the Soothsayer. Find clues, gather evidence, connect the dots, and confront the murderer before the hunter becomes the hunted…
- 4

Subsurface Circular
Single-player alternative to Marcella Moon: Four Are Watching — playable solo, no multiplayer required. Shares Indie with Marcella Moon: Four Are Watching.
When the truth is buried, go underground. Step into this new take on text-based adventure from the award-winning team behind Thomas Was Alone and Volume. A short story that hands you the fate of the world above, as a detective looking for answers on the Subsurface Circular.
- 5

The Posthumous Investigation
Single-player alternative to Marcella Moon: Four Are Watching — playable solo, no multiplayer required. Shares Indie with Marcella Moon: Four Are Watching.
A dead man hired you to solve his own murder. You have one day. Fourteen suspects. And as many attempts as it takes. A hand-drawn noir mystery set in 1937 Rio de Janeiro, where every suspect has a life, a schedule, and something to hide.
- 6

The Darkest Files
Single-player alternative to Marcella Moon: Four Are Watching — playable solo, no multiplayer required. Shares Indie with Marcella Moon: Four Are Watching.
Germany, 1956. The war is over, but justice is not served. Former Nazis walk free, while their victims lie in unmarked graves. As a prosecutor, you'll unearth long-buried evidence, confront witnesses and hunt down perpetrators. Will you have the courage to bring these "ordinary men" to court?
- 7

Chicken Police: Into the HIVE!
Single-player alternative to Marcella Moon: Four Are Watching — playable solo, no multiplayer required.
A wild tale of conspiracy, loss, friendship, and... chickens?! Two rooster detectives are about to venture into the insect underworld to uncover a worldwide conspiracy, while also battling their inherent demons in this animal noir adventure satire.
- 8

Sherlock Holmes: The Devil's Daughter
Single-player alternative to Marcella Moon: Four Are Watching — playable solo, no multiplayer required.
Experience a fantastic adventure with unique gameplay that blends investigation, action and exploration in a breath-taking thriller that will test the limits of your nerves and intelligence. Play as the great detective and track down evil in the darkest corners of London and the human soul…
- 9

Marcella Moon: Secret on the Hill
Single-player alternative to Marcella Moon: Four Are Watching — playable solo, no multiplayer required. Shares Indie with Marcella Moon: Four Are Watching.
Follow amateur sleuth Marcella Moon to Ireland to investigate the disappearance of a famous writer.
- 10

Marcella Moon: Saboteurs on the River
Single-player alternative to Marcella Moon: Four Are Watching — playable solo, no multiplayer required. Shares Indie with Marcella Moon: Four Are Watching.
Play as amateur sleuth Marcella Moon to investigate a series of sabotage incidents on the Louisiana bayou.
- 11

Lamplighter
Single-player alternative to Marcella Moon: Four Are Watching — playable solo, no multiplayer required. Shares Indie with Marcella Moon: Four Are Watching.
It’s 1807 and you are a lamplighter, responsible for keeping the street lights of London lit. Lamplighter is a story-driven puzzle game, set amidst the magical early 1800s when gas street lamps began to turn night into day and provoke people's imaginations, hopes, and fears.
- 12

Marcella Moon: Curse of the Black Cat
Single-player alternative to Marcella Moon: Four Are Watching — playable solo, no multiplayer required. Shares Indie with Marcella Moon: Four Are Watching.
Play as amateur sleuth Marcella Moon to investigate a cursed black cat statue that has been terrorizing a local theater.
- 13

Marcella Moon: Killer at the Cove
Single-player alternative to Marcella Moon: Four Are Watching — playable solo, no multiplayer required.
Play as amateur sleuth Marcella Moon to investigate a murder in a coastal California town.