Free games like The Infectious Madness of Doctor Dekker
Below are 9 free-to-play Steam games similar to The Infectious Madness of Doctor Dekker, ranked by player overlap and content similarity. No purchase or Steam login required to view the list. Every pick is a full free-to-play title — not a demo, trial, or time-limited giveaway. imho.run's catalogue refreshes daily, so newly free or newly popular titles surface here without manual editing.
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

Doki Doki Literature Club!
Free-to-play alternative to The Infectious Madness of Doctor Dekker — no purchase or trial window. Shares Indie and Casual with The Infectious Madness of Doctor Dekker.
The Literature Club is full of cute girls! Will you write the way into their heart? This game is not suitable for children or those who are easily disturbed.
- 2

Life is Strange - Episode 1
Free-to-play alternative to The Infectious Madness of Doctor Dekker — no purchase or trial window. Shares Adventure with The Infectious Madness of Doctor Dekker.
Episode 1 now FREE! Life is Strange is an award-winning and critically acclaimed episodic adventure game that allows the player to rewind time and affect the past, present and future.
- 3

Helltaker
Free-to-play alternative to The Infectious Madness of Doctor Dekker — no purchase or trial window. Shares Indie and Adventure with The Infectious Madness of Doctor Dekker.
Helltaker is a short game about sharply dressed demon girls.
- 4

Ultimate Custom Night
Free-to-play alternative to The Infectious Madness of Doctor Dekker — no purchase or trial window. Shares Indie with The Infectious Madness of Doctor Dekker.
Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!
- 5

Bongo Cat
Free-to-play alternative to The Infectious Madness of Doctor Dekker — no purchase or trial window. Shares Indie and Simulation with The Infectious Madness of Doctor Dekker.
Bongo cat needs your help. Bongo cat needz more hatz!!! Every time you press a key, Bongo cat will punch your taskbar. Type, click, play, work to collect more points. Which hats will you find?
- 6

ENA: Dream BBQ
Free-to-play alternative to The Infectious Madness of Doctor Dekker — no purchase or trial window. Shares Indie and Adventure with The Infectious Madness of Doctor Dekker.
Experience surreal environments and inexplicable characters as ENA in a new wild world.
- 7

The Murder of Sonic the Hedgehog
Free-to-play alternative to The Infectious Madness of Doctor Dekker — no purchase or trial window. Shares Indie and Simulation with The Infectious Madness of Doctor Dekker.
Sonic the Hedgehog...was murdered!? Get to the bottom of the mystery in this brand-new adventure!
- 8

Indigo Park: Chapter 1
Free-to-play alternative to The Infectious Madness of Doctor Dekker — no purchase or trial window. Shares Indie and Adventure with The Infectious Madness of Doctor Dekker.
Explore the abandoned childhood wonder of Indigo Park! Guided by Rambley the Raccoon, help restore power to the destroyed amusement park while you run from the reason it shut down.
- 9

The Test: Secrets of the Soul
Free-to-play alternative to The Infectious Madness of Doctor Dekker — no purchase or trial window. 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..."