The Infectious Madness of Doctor Dekker on Steam - User reviews, Price & Information

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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!

The Infectious Madness of Doctor Dekker is a fmv, lovecraftian and atmospheric game developed and published by D'Avekki Studios Ltd.
Released on May 19th 2017 is available in English on Windows, MacOS and Linux.

It has received 563 reviews of which 464 were positive and 99 were negative resulting in a rating of 7.8 out of 10. 😊

The game is currently priced at 8.99€ on Steam.

The Steam community has classified The Infectious Madness of Doctor Dekker into these genres:

FMV Lovecraftian Atmospheric Dark Indie Story Rich Detective Mystery Psychological Horror Psychological Singleplayer Adventure Horror Simulation Multiple Endings Drama Interactive Fiction Choices Matter Casual Visual Novel

Media & Screenshots

Get an in-depth look at The Infectious Madness of Doctor Dekker through various videos and screenshots.

The Infectious Madness of Doctor Dekker screenshot
The Infectious Madness of Doctor Dekker screenshot
The Infectious Madness of Doctor Dekker screenshot
The Infectious Madness of Doctor Dekker screenshot
The Infectious Madness of Doctor Dekker screenshot
The Infectious Madness of Doctor Dekker screenshot
The Infectious Madness of Doctor Dekker screenshot
The Infectious Madness of Doctor Dekker screenshot
The Infectious Madness of Doctor Dekker screenshot
The Infectious Madness of Doctor Dekker screenshot
The Infectious Madness of Doctor Dekker screenshot
The Infectious Madness of Doctor Dekker screenshot
The Infectious Madness of Doctor Dekker screenshot
The Infectious Madness of Doctor Dekker screenshot
The Infectious Madness of Doctor Dekker screenshot

System requirements

These are the minimum specifications needed to play the game. For the best experience, we recommend that you verify them.

Windows
  • OS *: Windows 7,8,10
  • Processor: Pentium 4 SSE2 onwards (dual core)
  • Memory: 2 GB RAM
  • Graphics: Intel HD3000 or comparable
  • Network: Broadband Internet connection
  • Storage: 20 GB available space
  • Additional Notes: Must be capable of playing full HD videos
MacOS
  • OS: OSX 10.9 onwards, 64 bit
  • Processor: Intel
  • Memory: 2 GB RAM
  • Graphics: Intel HD3000 or comparable
  • Network: Broadband Internet connection
  • Storage: 20 GB available space
  • Additional Notes: Must be capable of playing full HD videos
Linux
  • OS: Ubuntu 16.04 LTS, 64 bit
  • Processor: Pentium 4 SSE2 onwards (dual core)
  • Memory: 2 GB RAM
  • Graphics: Intel HD3000 or comparable
  • Network: Broadband Internet connection
  • Storage: 40 GB available space

User reviews & Ratings

Explore reviews from Steam users sharing their experiences and what they love about the game.

April 2025
The Infectious Madness of Doctor Dekker : At first I wasn't into it, but the more question you asked the more interesting it get. I have done only two playthrough so far but I'm already thinking of doing a 3rd one. The murderer is chosen randomly at the start of the game. During my first playthrough I was very close from finding the murderer. My first choice was Elin, since she's a nurse it's easy for her to get medicine. She also baked some cookies with medicinal ''herbs'' and it's easy for her to switch to someone else, so I thought maybe she can easily switch to Jaya and kill doctor Dekker but it wasn't her. My 2nd choice was Jaya it's very easy to access anything from the doctor when you are his assistant, also she keeps talking about Psychokinesis and pushing the blame on Marianna so for me it was getting more and more obvious and in my first playthough it was Jaya. The 2nd one I had Marianna. I can't wait for The Infectious Madness of Doctor Dekker 2.
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March 2025
This FMV novel is the most enigmatic experience I've ever had. It’s incredibly gripping and continuously leaves you questioning everything: Who is the killer? Do your patients possess mysterious powers? Or are we the crazy ones? The performances are superb, and with a sequel scheduled for 2025, I'm really looking forward to playing more games from this developer in the near future.
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Oct. 2024
The Infectious Madness of Doctor Dekker is a solid detective game with many possible outcomes. I primarily bought this game because I am a therapist and I love detective games so I felt that it was a nice blend of my career and my interests. I'm always leery of FMV games, but this is very well done. Dr. Dekker doesn't struggle with phrasing and will give the player a lot of leeway with how you ask questions. You can even be playful with it. At one point I decided to quote a scene from the Big Lebowski and I had some pretty comical results. "Do you see what happens, Larry? Do you see what happens when you..." The bottom line here, you will get a lot of replay value and the characters, while as a counselor I find them insufferable (Jaya), as a gamer I find them fun to explore. The achievements can be tedious so if you're an achievement hunter, beware. The story is solid and the game is a nice spin on detective games. I'd give this a 3.5/5 in total.
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Aug. 2024
I had so much fun with this game! It did take me a little bit to kinda get my bearings and figure out how to get the conversation flowing naturally, but once I did that I was all in, and found it pretty immersive and engrossing. Loved the characters, the acting, and the stories, and my god were some moments unsettling! Totally reccommend it if this seems like your thing!
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July 2024
At first I was put off by the lousy 'parser' system, where there was no real freedom of questioning. The game wanted us to ask 'exact' questions according to what was programmed. For example, instead of responding to the question "why did I come to your house?" the game would only respond to "why was I there at your house last night?" Since the questioning system is not AI based, its understandable its like this. Ultimately, you will learn that the easiest way to move forward is only by using keywords, which is enough to get essential responses but not all them. This is justified by the game stating how 'verbal mirroring' is a technique which brings the patient to trust us and open us. It makes sense, but really is a poor excuse of game design. It didn't help that the UI was clunky and unattractive. So, why did I continue to play all the way to the end. Engrossing, engaging, and just so interesting are the keywords. It's a murder mystery, but it is delivered in such a fashion that you are always wanting to hear more from the patients, who, were portrayed excellently by their actors/actresses. Seriously, the performance is worthy of an applause. I really got invested into the characters and wanted to learn everything about them. The eldritch themes just added to the atmosphere but made judgement hard. Why? Being a healthcare provider myself, I resonated with the main character, trying to determine whether my patients were really mentally ill or were really telling the truth, which was so fantastical. Was there really some eldritch reasoning behind the insanity or was it just plain insanity? It just stimulated my mind. Keeping in mind this was a FMV game, which have a reputation for being B-grade type of movie games, this game was a cut above the rest. In fact, it was the cream of the crop. I bought it on the summer sale so that added to the taste. But for those of you who like murder-mystery and eldritch storytelling, this is a recommended FMV game.
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Frequently Asked Questions

The Infectious Madness of Doctor Dekker is currently priced at 8.99€ on Steam.

The Infectious Madness of Doctor Dekker is currently not on sale. You can purchase it for 8.99€ on Steam.

The Infectious Madness of Doctor Dekker received 464 positive votes out of a total of 563 achieving a rating of 7.76.
😊

The Infectious Madness of Doctor Dekker was developed and published by D'Avekki Studios Ltd.

The Infectious Madness of Doctor Dekker is playable and fully supported on Windows.

The Infectious Madness of Doctor Dekker is playable and fully supported on MacOS.

The Infectious Madness of Doctor Dekker is playable and fully supported on Linux.

The Infectious Madness of Doctor Dekker is a single-player game.

The Infectious Madness of Doctor Dekker does not currently offer any DLC.

The Infectious Madness of Doctor Dekker does not support mods via Steam Workshop.

The Infectious Madness of Doctor Dekker does not support Steam Remote Play.

The Infectious Madness of Doctor Dekker is enabled for Steam Family Sharing. This means you can share the game with authorized users from your Steam Library, allowing them to play it on their own accounts. For more details on how the feature works, you can read the original Steam Family Sharing announcement or visit the Steam Family Sharing user guide and FAQ page.

You can find solutions or submit a support ticket by visiting the Steam Support page for The Infectious Madness of Doctor Dekker.

Data sources

The information presented on this page is sourced from reliable APIs to ensure accuracy and relevance. We utilize the Steam API to gather data on game details, including titles, descriptions, prices, and user reviews. This allows us to provide you with the most up-to-date information directly from the Steam platform.

Additionally, we incorporate data from the SteamSpy API, which offers insights into game sales and player statistics. This helps us present a comprehensive view of each game's popularity and performance within the gaming community.

Last Updates
Steam data 05 June 2025 05:19
SteamSpy data 09 June 2025 08:37
Steam price 15 June 2025 04:41
Steam reviews 12 June 2025 16:01

If you'd like to dive deeper into the details about The Infectious Madness of Doctor Dekker, we invite you to check out a few dedicated websites that offer extensive information and insights. These platforms provide valuable data, analysis, and user-generated reports to enhance your understanding of the game and its performance.

  • SteamDB - A comprehensive database of everything on Steam about The Infectious Madness of Doctor Dekker
  • SteamCharts - Analysis of The Infectious Madness of Doctor Dekker concurrent players on Steam
  • ProtonDB - Crowdsourced reports on Linux and Steam Deck The Infectious Madness of Doctor Dekker compatibility
The Infectious Madness of Doctor Dekker
8.99€
7.8
464
99
Game modes
Features
Online players
4
Developer
D'Avekki Studios Ltd
Publisher
D'Avekki Studios Ltd
Release 19 May 2017
Platforms
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