Single-player games like Who Killed Mr X
Below are 8 single-player Steam games similar to Who Killed Mr X, 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 Who Killed Mr X page.
Ranked picks
- 1

Evil School
Single-player alternative to Who Killed Mr X — playable solo, no multiplayer required. Shares Indie and RPG with Who Killed Mr X.
This game is an FMV about anti-bullying. A teenage girl mysteriously disappeared, and the truth was buried by power for eight years. Now, you return to this place of evil with a bloodstained list. The moment of slay & judgment has arrived...
- 2

The Test: Secrets of the Soul
Single-player alternative to Who Killed Mr X — playable solo, no multiplayer required. Shares Indie and RPG with Who Killed Mr X.
You will answer a series of questions that will reveal things from deep within. Some will be uncomfortable, but with great knowledge comes great sacrifice. Can you make it all the way through The Test, and are you SURE you want the answers you seek? For it is time to unlock "Secrets of the Soul..."
- 3

The Test: Hypothesis Rising
Single-player alternative to Who Killed Mr X — playable solo, no multiplayer required. Shares Indie and RPG with Who Killed Mr X.
The second chapter in The Test trilogy. Answer a series of in-depth questions to reveal hidden truths about yourself and unlock secrets to discover how your life can change drastically with just a few, slight modifications. ...But are you sure you want the answers you seek?
- 4

Back to the Dawn
Single-player alternative to Who Killed Mr X — playable solo, no multiplayer required. Shares Indie with Who Killed Mr X.
Back to the Dawn is a story-rich RPG set in a high-security prison ruled by factions and buried secrets. Investigate two conspiracies from the inside, gather evidence, and outsmart a system designed to silence you. Make friends (or foes) with fellow inmates and with their help, break out of prison.
- 5

Paradise Killer
Single-player alternative to Who Killed Mr X — playable solo, no multiplayer required. Shares Indie and RPG with Who Killed Mr X.
Paradise Island, a world outside reality. There’s been a murder that only "investigation freak" Lady Love Dies can solve. Gather evidence and interrogate suspects in this open world adventure. You can accuse anyone, but you’ll have to prove your case in trial. It’s up to you to decide who’s guilty.
- 6

Sherlock Holmes versus Jack the Ripper
Single-player alternative to Who Killed Mr X — playable solo, no multiplayer required. Shares RPG with Who Killed Mr X.
Recognized as one of the best licenses in gaming and lauded by the press, Sherlock Holmes is back with an investigation that is sure to be the most horrifying of the series. The famous detective stands against the most dangerous serial killer England has ever known - Jack the Ripper.
- 7

Blake: The Visual Novel
Single-player alternative to Who Killed Mr X — playable solo, no multiplayer required. Shares Indie with Who Killed Mr X.
Graphic Novel meets Visual Novel in this story-rich, choice-driven thriller. Experience Blake’s journey as he encounters a clandestine nemesis, sparking a series of events that force him to choose between losing his sanity or rising to the challenge. Make the right decisions and save New Stone.
- 8

Roman's Christmas / 罗曼圣诞探案集
Single-player alternative to Who Killed Mr X — playable solo, no multiplayer required. Shares Indie with Who Killed Mr X.
Roman, the wolf detective plans to spend his Christmas vacation in his favorite tavern, but murder cases happened in the tavern put him to work again.