Single-player games like The Infectious Madness of Doctor Dekker
Below are 12 single-player Steam games similar to The Infectious Madness of Doctor Dekker, 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 Infectious Madness of Doctor Dekker page.
Ranked picks
- 1
Dark Nights with Poe and Munro
Single-player alternative to The Infectious Madness of Doctor Dekker — playable solo, no multiplayer required. Shares Indie and Adventure with The Infectious Madness of Doctor Dekker.
Guide local radio hosts Poe and Munro through six TV-like episodes of supernatural strangeness and sizzling on-screen chemistry. From the creators of The Infectious Madness of Doctor Dekker and The Shapeshifting Detective.
- 2
Digital Hunger
Single-player alternative to The Infectious Madness of Doctor Dekker — playable solo, no multiplayer required. Shares Indie and Adventure with The Infectious Madness of Doctor Dekker.
A true-crime investigation inside a killer's 1999 desktop. Dig through his files, crack his secrets, and answer a call that rings on your real phone. HEBREW ONLY. 3 endings.
- 3
Saint Kotar
Single-player alternative to The Infectious Madness of Doctor Dekker — playable solo, no multiplayer required. Shares Indie and Adventure with The Infectious Madness of Doctor Dekker.
Saint Kotar is a psychological horror detective game set in a cursed valley in rural Croatia. Investigate the disappearance of your relative in the occult-ridden town of Sveti Kotar as you switch between conflicting realities through the eyes of two godly men.
- 4
Static Dread: The Lighthouse
Single-player alternative to The Infectious Madness of Doctor Dekker — playable solo, no multiplayer required. Shares Indie and Adventure with The Infectious Madness of Doctor Dekker.
Lovecraft meets Papers, Please. Play as a lighthouse keeper and guide ships safely into the harbor using your radio. Survive the presence of something impossible, and don’t let the shadows consume you!
- 5
Interrogation Files: Port Landsend
Single-player alternative to The Infectious Madness of Doctor Dekker — playable solo, no multiplayer required. Shares Indie and Adventure with The Infectious Madness of Doctor Dekker.
Search through the interrogation footage of suspects of a bizarre and horrific crime. Decide who committed the crime and see them get arrested and have their day in court. The latest interactive video experience.
- 6
The Test: Secrets of the Soul
Single-player alternative to The Infectious Madness of Doctor Dekker — playable solo, no multiplayer required. Shares Indie and Adventure with The Infectious Madness of Doctor Dekker.
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..."
- 7
Murderous Muses
Single-player alternative to The Infectious Madness of Doctor Dekker — playable solo, no multiplayer required. Shares Indie and Adventure with The Infectious Madness of Doctor Dekker.
Solve a sinister murder by spending three reality-shifting nights in a haunted art gallery. An infinitely re-playable murder mystery blending deduction, exploration, puzzles, collectibles and FMV.
- 8
Below, Rusted Gods
Single-player alternative to The Infectious Madness of Doctor Dekker — playable solo, no multiplayer required. Shares Indie and Adventure with The Infectious Madness of Doctor Dekker.
You are the lifeline supporting an expedition into the unknown. Keep both yourself and your squad alive by interpreting instrument readings, explore the facilities, and uncover something ancient and eager to be born.
- 9
Her Story
Single-player alternative to The Infectious Madness of Doctor Dekker — playable solo, no multiplayer required. Shares Indie and Adventure with The Infectious Madness of Doctor Dekker.
A woman is interviewed seven times by the police. Search the video database and explore hundreds of authentic clips to discover her story in this groundbreaking and award winning narrative game.
- 10
Persona 3 Reload
Single-player alternative to The Infectious Madness of Doctor Dekker — playable solo, no multiplayer required. Shares Adventure with The Infectious Madness of Doctor Dekker.
Dive into the Dark Hour and awaken the depths of your heart. Persona 3 Reload is a captivating reimagining of the genre-defining RPG, reborn for the modern era with cutting-edge graphics and gameplay.
- 11
The Shapeshifting Detective
Single-player alternative to The Infectious Madness of Doctor Dekker — playable solo, no multiplayer required. Shares Indie and Adventure with The Infectious Madness of Doctor Dekker.
The Shapeshifting Detective is a supernatural murder mystery FMV game where you play as a detective who can shapeshift into other characters, allowing you to unlock secret conversations and private encounters.
- 12
The Infectious Madness of Doctor Dekker 2
Single-player alternative to The Infectious Madness of Doctor Dekker — playable solo, no multiplayer required. Shares Simulation with The Infectious Madness of Doctor Dekker.
An FMV game where YOU are a psychiatrist trying to solve a double murder whilst treating the unusual patients of the recently deceased Doctor Dekker. Ask questions and link answers to determine their fates, and your own!