Single-player games like Doors Closed
Below are 8 single-player Steam games similar to Doors Closed, 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 Doors Closed page.
Ranked picks
- 1
The Darkest Files
Single-player alternative to Doors Closed — playable solo, no multiplayer required. Shares Indie and Simulation with Doors Closed.
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?
- 2
SYSCALL: RING ZERO
Single-player alternative to Doors Closed — playable solo, no multiplayer required. Shares Indie and Simulation with Doors Closed.
Reverse-engineer a private 1990s BBS. Read disassembly, patch broken checks, optimize a nine-core rack, and write assembly firmware that locks onto live scope traces. With 200+ puzzles, full controller support and offline play, you can refine your assembly skills on all your devices!
- 3
Paris Mysteries: Man with Ivory Cane
Single-player alternative to Doors Closed — playable solo, no multiplayer required. Shares Indie with Doors Closed.
Explore atmospheric Parisian locations, collect clues, combine items, crack ciphers and solve dozens of brain-teasing puzzles and mini-games to uncover the truth.
- 4
Back to the Dawn
Single-player alternative to Doors Closed — playable solo, no multiplayer required. Shares Indie and Simulation with Doors Closed.
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
Chicken Police: Into the HIVE!
Single-player alternative to Doors Closed — playable solo, no multiplayer required. Shares Simulation with Doors Closed.
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.
- 6
BROK the InvestiGator
Single-player alternative to Doors Closed — playable solo, no multiplayer required. Shares Action and Indie with Doors Closed.
An innovative adventure mixed with beat 'em up and RPG elements. In a grim world where animals have replaced mankind, what kind of detective will you be?
- 7
The Test: Secrets of the Soul
Single-player alternative to Doors Closed — playable solo, no multiplayer required. Shares Indie and Simulation with Doors Closed.
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..."
- 8
Duck Detective: The Secret Salami
Single-player alternative to Doors Closed — playable solo, no multiplayer required. Shares Indie with Doors Closed.
Solving crime is no walk in the pond. You are a down-on-his-luck detective who also happens to be a duck. Use your powers of de-duck-tion to inspect evidence, fill in the blanks, and bust the case wide open! This is a short but twisty detective case.