Single-player games like The Crimson Diamond
Below are 10 single-player Steam games similar to The Crimson Diamond, 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 Crimson Diamond page.
Ranked picks
- 1
The Roottrees are Dead
Single-player alternative to The Crimson Diamond — playable solo, no multiplayer required. Shares Adventure with The Crimson Diamond.
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.
- 2
Lacuna – A Sci-Fi Noir Adventure
Single-player alternative to The Crimson Diamond — playable solo, no multiplayer required. Shares Adventure with The Crimson Diamond.
A murder. A hack. A bombing. All it takes to plunge the solar system into war – unless you do something about it. Help CDI agent Neil Conrad make a string of increasingly difficult decisions in this modern dialog-driven adventure set in a gorgeous 2D sci-fi noir universe.
- 3
Nancy Drew®: Last Train to Blue Moon Canyon
Single-player alternative to The Crimson Diamond — playable solo, no multiplayer required. Shares Adventure with The Crimson Diamond.
Catch this train — it’s your ticket to solving a century-old mystery!
- 4
Strange Antiquities
Single-player alternative to The Crimson Diamond — playable solo, no multiplayer required. Shares Adventure with The Crimson Diamond.
Become the custodian of a store dealing in occult antiquities. Explore the quaint and gloomy town of Undermere, where strange goings-on and dark mysteries abound. Find and identify arcane artefacts, use your collection to aid the townsfolk with their unusual problems — and remember to pet your cat!
- 5
Lamplight City
Single-player alternative to The Crimson Diamond — playable solo, no multiplayer required. Shares Adventure with The Crimson Diamond.
A steampunk-ish detective adventure from the creator of A Golden Wake and Shardlight! Can you help private investigator Miles Fordham find justice for his clients and track down his partner's killer before his entire world comes apart?
- 6
Chinatown Detective Agency
Single-player alternative to The Crimson Diamond — playable solo, no multiplayer required. Shares Adventure with The Crimson Diamond.
Chinatown Detective Agency is a cybernoir point and click adventure blending stunning retro design with innovative mechanics. Play as Amira Darma, an ex-cop who has just opened her own detective agency. Choose your clients, travel around the world and solve dangerous cases using real world research.
- 7
Confidential Killings - A Detective Game
Single-player alternative to The Crimson Diamond — playable solo, no multiplayer required. Shares Adventure with The Crimson Diamond.
A series of murders is shocking Hollywood! Use your detective skills: search the crime scene, find clues, solve the mystery. Who is pulling the strings behind these Confidential Killings?
- 8
TR-49
Single-player alternative to The Crimson Diamond — playable solo, no multiplayer required. Shares Adventure with The Crimson Diamond.
A World War II computer. An archive of lost books. A world-changing secret. Narrative deduction meets audio drama, from the creators of Overboard!, Heaven's Vault and A Highland Song.
- 9
Space Quest™ Collection
Single-player alternative to The Crimson Diamond — playable solo, no multiplayer required. Shares Adventure with The Crimson Diamond.
Experience a blast from the past with the complete, completely twisted Space Quest Collection.
- 10
Return to Monkey Island
Single-player alternative to The Crimson Diamond — playable solo, no multiplayer required. Shares Adventure with The Crimson Diamond.
Return to Monkey Island is an unexpected, thrilling return of series creator Ron Gilbert that continues the story of the legendary adventure games.