Free games like Operation Sniff
Below are 9 free-to-play Steam games similar to Operation Sniff, 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 Operation Sniff page.
Ranked picks
- 1

Doki Doki Literature Club!
Free-to-play alternative to Operation Sniff — no purchase or trial window. Shares Indie and Casual with Operation Sniff.
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

Ultimate Custom Night
Free-to-play alternative to Operation Sniff — no purchase or trial window. Shares Action and Indie with Operation Sniff.
Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!
- 3

Bongo Cat
Free-to-play alternative to Operation Sniff — no purchase or trial window. Shares Indie and Simulation with Operation Sniff.
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?
- 4

The Murder of Sonic the Hedgehog
Free-to-play alternative to Operation Sniff — no purchase or trial window. Shares Indie and Simulation with Operation Sniff.
Sonic the Hedgehog...was murdered!? Get to the bottom of the mystery in this brand-new adventure!
- 5

Indigo Park: Chapter 1
Free-to-play alternative to Operation Sniff — no purchase or trial window. Shares Action and Indie with Operation Sniff.
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.
- 6

STRAFTAT
Free-to-play alternative to Operation Sniff — no purchase or trial window. Shares Action with Operation Sniff.
STRAFTAT is a 1v1/2v2 ONLINE first person SHOOTER with quick rounds in over 350 MAPS ; Including all WEAPONS, proximity chat and 4 players FFA.
- 7

Counter-Strike:Global Offensive
Free-to-play alternative to Operation Sniff — no purchase or trial window. Shares Action with Operation Sniff.
Counter-Strike:Global Offensive (CS:GO) expands upon the team-based action gameplay that it pioneered when it was launched over 2 decades ago. CS:GO features new maps, characters, weapons, and game modes, and delivers updated versions of the classic CS content (de_dust2, etc.).
- 8

NGU IDLE
Free-to-play alternative to Operation Sniff — no purchase or trial window. Shares Indie and Simulation with Operation Sniff.
NGU Idle is a Free To Play Idle game that's full of weird humor, tons of upgrades and hundreds of hours of content! Try out NGU Idle today and experience the joy of Numbers Going Up!
- 9

Mitos.is: The Game
Free-to-play alternative to Operation Sniff — no purchase or trial window. Shares Simulation and Casual with Operation Sniff.
Step into the microscopic world of Mitos.is! Eat or be eaten—become the ultimate cell in a highly addictive multiplayer game. Diverse modes, daily tournaments, guilds, and gear await! The BEST game of 2015 is back!