Single-player games like The Infectious Madness of Doctor Dekker 2
Below are 10 single-player Steam games similar to The Infectious Madness of Doctor Dekker 2, 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 2 page.
Ranked picks
- 1
The Infectious Madness of Doctor Dekker
Single-player alternative to The Infectious Madness of Doctor Dekker 2 — playable solo, no multiplayer required. Shares Simulation with The Infectious Madness of Doctor Dekker 2.
YOU are a psychiatrist, trying to solve a murder whilst treating the unusual patients of the recently deceased Doctor Dekker. Type a question - patients reply in full screen video and have questions for you too but be careful what you say. Your words determine their eventual fates, and your own!
- 2
IMMORTALITY
Single-player alternative to The Infectious Madness of Doctor Dekker 2 — playable solo, no multiplayer required. Shares Simulation with The Infectious Madness of Doctor Dekker 2.
Marissa Marcel was a film star. She made three movies. But none of the movies were ever released. And Marissa Marcel disappeared. An interactive trilogy from Sam Barlow, creator of Her Story.
- 3
Dark Nights with Poe and Munro
Single-player alternative to The Infectious Madness of Doctor Dekker 2 — playable solo, no multiplayer required.
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.
- 4
Criminal Expert
Single-player alternative to The Infectious Madness of Doctor Dekker 2 — playable solo, no multiplayer required. Shares Simulation with The Infectious Madness of Doctor Dekker 2.
Criminal Expert is a detective video game that puts you under the pressure of inexorably passing time. The story contains multiple selection paths, and you ultimately decide how it ends.
- 5
晨昏线
Single-player alternative to The Infectious Madness of Doctor Dekker 2 — playable solo, no multiplayer required. Shares Simulation with The Infectious Madness of Doctor Dekker 2.
《DayBreak》 is an anti-narcotics-themed interactive video work, adapted from real volumes, with a unique two-line narrative system that brings a differentiated interactive experience.
- 6
I Saw Black Clouds
Single-player alternative to The Infectious Madness of Doctor Dekker 2 — playable solo, no multiplayer required.
After the unexpected death of a close friend, Kristina returns to her hometown looking for answers, only to unearth a string of dark secrets. I Saw Black Clouds is an interactive psychological thriller with supernatural elements and branching storylines.
- 7
Doctor Who: The Lonely Assassins
Single-player alternative to The Infectious Madness of Doctor Dekker 2 — playable solo, no multiplayer required.
Uncover the dark secrets of Wester Drumlins and confront a new evil in a thrilling found-phone mystery from the award-winning creators of Sara Is Missing and SIMULACRA.
- 8
Alone in the Dark
Single-player alternative to The Infectious Madness of Doctor Dekker 2 — playable solo, no multiplayer required.
Return to Derceto Manor in this reimagination of Alone in the Dark, a love letter to the 90’s cult classic horror game.
- 9
The Shapeshifting Detective
Single-player alternative to The Infectious Madness of Doctor Dekker 2 — playable solo, no multiplayer required.
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.
- 10
Murderous Muses
Single-player alternative to The Infectious Madness of Doctor Dekker 2 — playable solo, no multiplayer required.
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.