The Game Census
The Infectious Madness of Doctor Dekker cover art

The Infectious Madness of Doctor Dekker

D'Avekki Studios Ltd · 2017-05-19

SteamGOGPlayStation StoreMicrosoft Store

AdventureCasualIndieSimulation

Modes: Single player

Releases: May 19, 2017 (PC (Microsoft Windows)), May 19, 2017 (Mac), May 19, 2017 (Linux), Jun 05, 2018 (PlayStation 4), Jun 05, 2018 (Nintendo Switch), Jun 05, 2018 (Xbox One)

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!

1
playing now
82%
positive of 616 reviews
Very Positive
steam rating
50,000–100,000
owners (SteamSpy est.)
80/100
critic score (1 outlets, IGDB)
65/100
IGDB user rating (8 ratings)
bronze
deck/linux tier (ProtonDB)
$8.99
steam price (US)

1 players in-game as of 2026-08-30 08:00 UTC (census sample)

The Infectious Madness of Doctor Dekker is an FMV murder mystery adventure video game developed by D'avekki Studios, written by Tim Cowles and Lynda Cowles, and released in 2017. Players play as a psychiatrist, trying to solve a murder whilst treating the patients of the recently deceased Doctor Dekker. The game was initially released for Microsoft Windows and macOS via Steam before being published on consoles by British game publishing studio, Wales Interactive.

Health check

Insufficient data
  • · Not enough review history collected yet to judge health.
  • · Top 37% of 11,334 Adventure games in the census by review count.
Estimated sales: 15k–37k copies

Review-multiple estimate from 616 total reviews — how this is computed.

Current store prices

GOG$2.69-70%
lowest across shops (ITAD)$2.69-70%
Microsoft Store$12.99

Deal snapshots via CheapShark, refreshed daily.

All-time low: $2.06 at Fanatical (2025-06-20) · bundled 5×via IsThereAnyDeal

12-month high $8.99 · on sale 45 of 69 observed days · $0.63 above the all-time low (census price snapshots)

Players online

602026-08-11 21:00 — 1 players2026-08-12 13:00 — 1 players2026-08-13 04:00 — 1 players2026-08-13 20:00 — 2 players2026-08-14 12:00 — 1 players2026-08-15 04:00 — 0 players2026-08-15 20:00 — 6 players2026-08-16 12:00 — 1 players2026-08-17 04:00 — 3 players2026-08-17 19:00 — 3 players2026-08-18 11:00 — 1 players2026-08-19 03:00 — 3 players2026-08-19 19:00 — 1 players2026-08-20 10:00 — 1 players2026-08-21 02:00 — 3 players2026-08-21 18:00 — 1 players2026-08-22 10:00 — 2 players2026-08-23 01:00 — 1 players2026-08-23 17:00 — 2 players2026-08-24 09:00 — 1 players2026-08-25 01:00 — 1 players2026-08-25 17:00 — 2 players2026-08-26 09:00 — 0 players2026-08-27 01:00 — 0 players2026-08-27 16:00 — 1 players2026-08-28 08:00 — 1 players2026-08-29 00:00 — 3 players2026-08-29 16:00 — 1 players2026-08-30 08:00 — 1 players
Concurrent players, hourly average, last 30 days (census samples).

Price history

$8.99$2.242017-05-192026-08-302017-05-19 — best price $8.992018-11-27 — best price $8.992020-01-22 — best price $4.492020-08-04 — best price $8.992020-09-06 — best price $8.992020-10-01 — best price $7.992020-10-24 — best price $8.992020-11-13 — best price $7.992020-12-22 — best price $5.392021-01-23 — best price $8.992021-02-14 — best price $8.992021-03-24 — best price $6.602021-04-25 — best price $7.532021-05-29 — best price $8.992021-07-01 — best price $7.532021-12-02 — best price $8.992022-05-07 — best price $8.992022-07-13 — best price $7.092022-11-08 — best price $7.092023-02-25 — best price $7.092023-09-25 — best price $2.692024-01-07 — best price $6.602024-03-13 — best price $8.992024-06-11 — best price $7.092024-08-23 — best price $7.092024-11-19 — best price $3.052025-01-20 — best price $2.692025-03-12 — best price $8.992025-05-10 — best price $6.602025-07-18 — best price $8.992025-10-08 — best price $8.992025-12-12 — best price $2.702026-03-16 — best price $8.992026-05-22 — best price $8.992026-08-29 — best price $2.692026-08-30 — best price $2.69
Lowest recorded price across tracked stores, per day (census snapshots).

Attention

2932026-05-29 — 13 pageviews2026-06-01 — 13 pageviews2026-06-04 — 10 pageviews2026-06-07 — 10 pageviews2026-06-10 — 9 pageviews2026-06-13 — 19 pageviews2026-06-16 — 14 pageviews2026-06-19 — 13 pageviews2026-06-22 — 19 pageviews2026-06-25 — 14 pageviews2026-06-28 — 14 pageviews2026-07-01 — 13 pageviews2026-07-04 — 13 pageviews2026-07-07 — 16 pageviews2026-07-10 — 8 pageviews2026-07-13 — 10 pageviews2026-07-16 — 21 pageviews2026-07-19 — 13 pageviews2026-07-22 — 12 pageviews2026-07-25 — 19 pageviews2026-07-28 — 5 pageviews2026-07-31 — 9 pageviews2026-08-03 — 19 pageviews2026-08-06 — 18 pageviews2026-08-09 — 14 pageviews2026-08-12 — 8 pageviews2026-08-15 — 12 pageviews2026-08-18 — 7 pageviews2026-08-21 — 24 pageviews2026-08-24 — 9 pageviews2026-08-26 — 6 pageviews
Daily Wikipedia pageviews (attention proxy, census-recorded).

Details

WindowsmacOSLinuxSingle-playerSteam AchievementsSteam Trading CardsFamily Sharing

Console footprint

PlatformPlayers trackedCompletionTrophies/achievements
PS4 (PlayStation)1,57642%22
Steam (Steam)1,2885%35
Xbox One (Xbox)95223%21
Switch (Nintendo)70%0

Players tracked by Exophase (achievement/trophy trackers) — a sample of the player base, not total sales.

Player tags

FMVDarkIndieHorrorMysteryAdventureDetectiveSimulationStory RichAtmospheric

Census log

Computed from census-recorded observations only — dates are observation dates.

Players also track

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Similarity via IGDB.

Official site ↗