Free games like Circuit Defense
Below are 8 free-to-play Steam games similar to Circuit Defense, 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 Circuit Defense page.
Ranked picks
- 1
Bongo Cat
Free-to-play alternative to Circuit Defense — no purchase or trial window. Shares Indie with Circuit Defense.
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?
- 2
The Murder of Sonic the Hedgehog
Free-to-play alternative to Circuit Defense — no purchase or trial window. Shares Indie with Circuit Defense.
Sonic the Hedgehog...was murdered!? Get to the bottom of the mystery in this brand-new adventure!
- 3
Indigo Park: Chapter 1
Free-to-play alternative to Circuit Defense — no purchase or trial window. Shares Indie with Circuit Defense.
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.
- 4
Awaria
Free-to-play alternative to Circuit Defense — no purchase or trial window. Shares Indie with Circuit Defense.
Awaria is a short game about working in haunted maintenance tunnels.
- 5
Travellin Cats in Paris
Free-to-play alternative to Circuit Defense — no purchase or trial window. Shares Indie with Circuit Defense.
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!
- 6
The Lab
Free-to-play alternative to Circuit Defense — no purchase or trial window.
Welcome to The Lab, a compilation of Valve’s room-scale VR experiments set in a pocket universe within Aperture Science. Fix a robot, defend a castle, adopt a mechanical dog, and more. Still not sold? It’s free!
- 7
Control, I'm Not Coming Back
Free-to-play alternative to Circuit Defense — no purchase or trial window. Shares Indie with Circuit Defense.
Control, I'm Not Coming Back is a short and emotional narrative game about a lost astronaut searching for a reason to keep going forward while facing the emptiness of space. Inspired by the Hopecore aesthetic, it’s a story about positivism, friendship and our human connection with Voyager 1.
- 8
100 Asian Cats
Free-to-play alternative to Circuit Defense — no purchase or trial window. Shares Strategy and Indie with Circuit Defense.
🏮🐈 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? 🕵️♂️🐈✅