Free games like Calculus of Rot
Below are 8 free-to-play Steam games similar to Calculus of Rot, 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 Calculus of Rot page.
Ranked picks
- 1
Helltaker
Free-to-play alternative to Calculus of Rot — no purchase or trial window. Shares Adventure with Calculus of Rot.
Helltaker is a short game about sharply dressed demon girls.
- 2
The Looker
Free-to-play alternative to Calculus of Rot — no purchase or trial window.
You wake up, alone, on a strangely familiar island full of puzzles that will frustrate and annoy you.
- 3
Travellin Cats in Paris
Free-to-play alternative to Calculus of Rot — no purchase or trial window.
Find 100 cats hidden in Paris, France in this cute hand-drawn hidden object game by Travellin Cats - the original viral hidden cat game creator!
- 4
An Arcade Full of Cats
Free-to-play alternative to Calculus of Rot — no purchase or trial window.
Journey through gaming history's time and space, while searching for adorable feline companions in 'An Arcade Full of Cats,' the ultimate pet'em up hidden object game.
- 5
100 Asian Cats
Free-to-play alternative to Calculus of Rot — no purchase or trial window.
🏮🐈 100 Asian Cats - Join the cutest adventure in the Asia! 😻 🌸 Explore the charming hand-drawn artwork of Asian temples 🏯 as you embark on a quest to find 100 adorable cats hidden throughout the game. 🕵️♂️❌ Can you find them all? 🕵️♂️🐈✅
- 6
The Supper
Free-to-play alternative to Calculus of Rot — no purchase or trial window. Shares Adventure with Calculus of Rot.
The Supper is a short adventure game about the darkest side of the human soul. Ms. Appleton was always a wellspring of kindness, until The Voice started talking to her.
- 7
Lily's Well
Free-to-play alternative to Calculus of Rot — no purchase or trial window. Shares Adventure with Calculus of Rot.
It is a rainy night in the Spring of 2005. Lily is left home alone after her Papa put her to bed. She is awoken by a cry for help outside her window. It is coming from the well. Help Lily gather rope to go down the well and save the poor soul trapped down there.
- 8
100 Capitalist Cats
Free-to-play alternative to Calculus of Rot — no purchase or trial window.
🐱💼 100 Capitalist Cats - Join the cutest adventure in the Wall Street! 😻💰💵 Explore the charming hand-drawn artwork of New York, heart of Capitalism, as you embark on a quest to find 100 adorable cats hidden throughout the game. 🕵️♂️❌ Can you find them all? 🕵️♂️🐈✅