The Infectious Madness of Doctor Dekker
PlayStation 4 · 2017
About this game
Dekker, a psychiatrist, has been stabbed to death, and his killer is still on the loose.
Stepping in shoes of a new psychiatrist, taking over the office and patients of Dr.
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Dekker, the player continues to try and help the patients deal with anxiety all the while searching for answers about what happened to Dr.
Dekker and possible find the murderer seeing how all of his patients are also suspects.
But more you talk to your patients, more you start to question your sanity and line between reality and fiction grows thin.
The game progresses through days, but in order to be able to go to next day, the player needs to talk to his patients and deplete key conversations while trying to manually type in questions to find out more additional info is optional, but may provide clues.
There are five key patients that are also primary suspects, while a few other irregular patients also come for therapy.
Nathan, who is convinced that he is reliving the same day over and over again.
Marianna, who is convinced she is luring people to their deaths by making them follow her and end up being sacrificed to a sea god.
Claire, who murdered her husband in a jealous rage, then reanimated him using necromancy.
Elin, an angel of death who believes she can shapeshift into loved ones of the people who are dying.
Bryce, a gravedigger who can supposedly use an extra hour when time stands still for everyone else.
Dekker's secretary, who is into psychokinesis and who headhunted both Dekker and the player for the job.
Suspects are a bunch and each comes with very believable, yet crazy story.
At the beginning of each day there are several patients the player can interact with and ask questions.
Some questions are preset, while others can be manually typed in to be asked.
Text-parser often react to certain keyword while in other cases the sentence will have to be properly assembled in order to trigger the right answer.
From time to time, player will also receive items from people wh
About PlayStation 4
The PlayStation 4 (2013) cemented Sony's dominance of the eighth console generation, with a library exceeding 30,000 titles once indie and digital-only releases are counted. Most PS4 games remain affordable for collectors, but limited physical print runs — particularly from smaller publishers and later in the console's life cycle — are starting to see steady price increases as digital storefronts eventually wind down support.
Gamevaro tracks The Infectious Madness of Doctor Dekker for PlayStation 4 with separate market values for loose, complete-in-box (CIB) and factory-sealed copies, sourced from real eBay sales. Prices also vary by region — PAL, NTSC-U and NTSC-J releases of the same game often sell for different amounts due to print run sizes and regional collector demand.
Adding The Infectious Madness of Doctor Dekker to a Gamevaro collection takes seconds — search by title or scan the box barcode, and the app fills in cover art, release details and current pricing automatically. This PS4 release dates back to 2017.
Price history
Market values by condition
NTSC-U
Recent sales
| Date | Type | Region | Price |
|---|---|---|---|
| 2026-07-12 | Item only | NTSC-U | €18.76 |
| 2026-07-12 | Graded New | NTSC-U | €28.85 |
| 2026-07-12 | Box Only | NTSC-U | €8.08 |
| 2026-07-12 | Complete in Box | NTSC-U | €20.19 |
| 2026-07-12 | New (sealed) | NTSC-U | €26.22 |
| 2026-07-10 | Item only | NTSC-U | €18.75 |
| 2026-07-10 | New (sealed) | NTSC-U | €26.21 |
| 2026-07-10 | Box Only | NTSC-U | €8.07 |
| 2026-07-10 | Complete in Box | NTSC-U | €20.18 |
| 2026-07-10 | Graded New | NTSC-U | €28.83 |
| 2026-06-18 | New (sealed) | NTSC-U | €25.86 |
| 2026-06-18 | Graded New | NTSC-U | €79.33 |
| 2026-06-18 | Graded New | NTSC-U | €28.45 |
| 2026-06-18 | Complete in Box | NTSC-U | €55.49 |
| 2026-06-18 | Item only | NTSC-U | €18.56 |
| 2026-06-18 | Box Only | NTSC-U | €7.96 |
| 2026-06-18 | Item only | NTSC-U | €51.76 |
| 2026-06-18 | Complete in Box | NTSC-U | €19.90 |
| 2026-06-18 | New (sealed) | NTSC-U | €72.11 |
| 2026-06-18 | Box Only | NTSC-U | €22.20 |
| 2026-06-17 | Item only | NTSC-U | €18.56 |
| 2026-06-17 | Graded New | NTSC-U | €28.45 |
| 2026-06-17 | New (sealed) | NTSC-U | €25.86 |
| 2026-06-17 | Box Only | NTSC-U | €7.96 |
| 2026-06-17 | Complete in Box | NTSC-U | €19.90 |
| 2026-06-15 | New (sealed) | NTSC-U | €25.92 |
| 2026-06-15 | Item only | NTSC-U | €18.60 |
| 2026-06-15 | Complete in Box | NTSC-U | €19.94 |
| 2026-06-15 | Graded New | NTSC-U | €28.51 |
| 2026-06-15 | Box Only | NTSC-U | €7.98 |
Market insights
Rarity & condition
The Infectious Madness of Doctor Dekker has a steady sales history on the tracked marketplaces, meaning enough copies circulate to establish a reliable market price.
Complete-in-box (CIB) copies typically command a premium over loose cartridges/discs because the original box and manual are more fragile and get discarded or damaged over time — fewer complete sets survive.
Frequently asked questions
How much is The Infectious Madness of Doctor Dekker worth?
The Infectious Madness of Doctor Dekker for PlayStation 4 is currently worth €51.76 loose, €20.19 complete in box, and €26.22 factory sealed. Prices are based on real sales and update regularly on Gamevaro.
Is The Infectious Madness of Doctor Dekker rare?
The Infectious Madness of Doctor Dekker has a steady sales history on the tracked marketplaces, meaning it trades hands regularly and isn't considered particularly rare.
What's the difference between loose, CIB and sealed for The Infectious Madness of Doctor Dekker?
Loose means cartridge or disc only, CIB (complete in box) includes the original box and manual, and sealed means factory-sealed and never opened. For The Infectious Madness of Doctor Dekker, loose is €51.76 and CIB is €20.19 — CIB commands a premium because original boxes and manuals are fragile and often don't survive.
Ratings & Reviews
Also on other platforms
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