Single-player games like Puzzle Spy International
Below are 10 single-player Steam games similar to Puzzle Spy International, 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 Puzzle Spy International page.
Ranked picks
- 1

A Case of Fraud
Single-player alternative to Puzzle Spy International — playable solo, no multiplayer required. Shares Indie with Puzzle Spy International.
A short non-linear detective adventure where every clue is hidden in plain sight. Carefully read and cross-reference documents to unravel a CEO’s disappearance and expose a case of fraud.
- 2

The Roottrees are Dead
Single-player alternative to Puzzle Spy International — playable solo, no multiplayer required.
A genealogical mystery straight out of 1998. Scour the early Internet for clues, uncover hidden connections, and piece together the family tree behind the secretive Roottree Corporation.
- 3

The Ratline
Single-player alternative to Puzzle Spy International — playable solo, no multiplayer required. Shares Indie with Puzzle Spy International.
A murdered priest. A secret list. Hunt Nazi fugitives across the globe in this gritty 1971 detective thriller. Analyze evidence, follow leads, and make sharp deductions before the trail goes cold. From the creators of Family, Rivals, Conspiracy, Echo Beach and Riley & Rochelle.
- 4

Arranger: A Role-Puzzling Adventure
Single-player alternative to Puzzle Spy International — playable solo, no multiplayer required. Shares Indie with Puzzle Spy International.
Find your way in a world of breezy, thoughtful puzzles, along a charming journey of self-discovery.
- 5

Murder by Numbers
Single-player alternative to Puzzle Spy International — playable solo, no multiplayer required. Shares Indie with Puzzle Spy International.
Solve Pixel Puzzles to find clues. Use those clues to interrogate witnesses. Work your way to the truth... ...and uncover the mystery of Murder by Numbers!
- 6

Little Locked Rooms
Single-player alternative to Puzzle Spy International — playable solo, no multiplayer required. Shares Indie with Puzzle Spy International.
Grab your magnifying glass and peek inside a series of tiny dioramas filled with crimes and carefully crafted mysteries! Think outside the box and solve them all in this new brand of detective game!
- 7

Murder at the Birch Tree Theater
Single-player alternative to Puzzle Spy International — playable solo, no multiplayer required. Shares Indie with Puzzle Spy International.
Uncover high drama in this whodunnit set in a small-town community theater. Gather clues by investigating the sets, casts and backstage crews of 10 theatrical productions, and piece together the story of each deadly crime.
- 8

The Rise of the Golden Idol
Single-player alternative to Puzzle Spy International — playable solo, no multiplayer required. Shares Indie with Puzzle Spy International.
The Award-winning detective saga returns in this standalone sequel to The Case of the Golden Idol. Uncover the truth behind 20 strange cases of crime, death and depravity in the 1970s. The world has changed dramatically - the sins of humanity have not.
- 9

The Talos Principle
Single-player alternative to Puzzle Spy International — playable solo, no multiplayer required. Shares Indie with Puzzle Spy International.
The Talos Principle is a first-person puzzle game in the tradition of philosophical science fiction. Made by Croteam and written by Tom Jubert (FTL, The Swapper) and Jonas Kyratzes (The Sea Will Claim Everything).
- 10

Carmen Sandiego
Single-player alternative to Puzzle Spy International — playable solo, no multiplayer required.
The scarlet super thief Carmen Sandiego is back! Adorn Carmen’s signature red hat and play as the vigilante herself to navigate a world of espionage, utilizing high-tech gadgets, and ultimately capturing VILE.