Single-player games like Knee Deep
Below are 10 single-player Steam games similar to Knee Deep, 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 Knee Deep page.
Ranked picks
- 1

Phantom: Hidden Sins
Single-player alternative to Knee Deep — playable solo, no multiplayer required. Shares Indie and Adventure with Knee Deep.
As an independent police consultant, you're pulled into the hunt for a serial killer leaving cryptographic ciphers. Play as a detective, analyze crime scenes, and master real decryption methods. Your choices determine if you catch the killer and how many lives are saved.
- 2

Meridian Archive
Single-player alternative to Knee Deep — playable solo, no multiplayer required. Shares Indie and Adventure with Knee Deep.
Meridian Archive is a neo-noir crime visual novel set in the sealed world of Notus in 2008. After the disaster known as Saltification, those immune to the disease begin losing their memories—and themselves. Follow a band of Nomads through a violent, surreal world to uncover what went wrong.
- 3

Shadows on the Vatican: Nightingale
Single-player alternative to Knee Deep — playable solo, no multiplayer required. Shares Adventure with Knee Deep.
Writing on a blog and using her obscure ability, the mysterious Nightingale has been helping people in danger for years. Now, she’s forced to disappear, facing threats from a killer... one of those people she helped in the past. An interactive short story featuring an advanced navigation UI.
- 4

Unlighted
Single-player alternative to Knee Deep — playable solo, no multiplayer required. Shares Indie and Adventure with Knee Deep.
Unlighted is a first-person puzzle video game where you enter a dystopian world that reflects the threshold between memory and oblivion, where you experiment with the characteristics of weird materials that materialize when hit by a ray of light.
- 5

Lacuna – A Sci-Fi Noir Adventure
Single-player alternative to Knee Deep — playable solo, no multiplayer required. Shares Indie and Adventure with Knee Deep.
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.
- 6

紅蜘蛛外伝:暗花
Single-player alternative to Knee Deep — playable solo, no multiplayer required. Shares Indie and Adventure with Knee Deep.
The latest in the “Red Spider” series of Hong Kong noir visual novel with full japanese voice acting, “Red Spider Anecdote: The Longest Nite” is now available with all-new graphics. The hard-boiled story of two female protagonists is set in Thailand in 2009. Play time: 2-4 hours
- 7

Sinful Testament
Single-player alternative to Knee Deep — playable solo, no multiplayer required. Shares Indie and Adventure with Knee Deep.
A dark historical otome visual novel. Houston, Texas, 1925. A heroine from 2025 is reborn as the daughter of a murdered mafia boss and becomes “compensation” for the Devil’s Six gang. Six dangerous men, seven deadly sins, and a choice between Redemption and Fall.
- 8

My Cashy Side Job at Lost&Found in the Subway of Million-Person City
Single-player alternative to Knee Deep — playable solo, no multiplayer required. Shares Indie and Adventure with Knee Deep.
Noir adventure for an unlucky subway's lost and found worker!
- 9

Twin Peaks VR
Single-player alternative to Knee Deep — playable solo, no multiplayer required. Shares Indie and Adventure with Knee Deep.
Twin Peaks VR brings people into the world of Twin Peaks using the immersive technology of VR. Based on the iconic television series created by David Lynch and Mark Frost, players will be able to experience several locations from the show including the Red Room, Glastonbury Grove, Sheriff's Department, Glass Box Observation and more.
- 10

E-Files
Single-player alternative to Knee Deep — playable solo, no multiplayer required. Shares Indie and Adventure with Knee Deep.
E-FILES — a psychological horror game in the style of the PS1 era, centered around a secret investigation, rituals, and the mysterious “Lists.” Explore dark locations, search for clues, solve puzzles, and avoid deadly traps. Fixed camera angles, retro graphics, and limited saves.