Free games like Cartridge Defense
Below are 9 free-to-play Steam games similar to Cartridge 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 Cartridge Defense page.
Ranked picks
- 1
Ultimate Custom Night
Free-to-play alternative to Cartridge Defense — no purchase or trial window. Shares Indie with Cartridge Defense.
Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!
- 2
ENA: Dream BBQ
Free-to-play alternative to Cartridge Defense — no purchase or trial window. Shares Indie with Cartridge Defense.
Experience surreal environments and inexplicable characters as ENA in a new wild world.
- 3
Star Fetchers
Free-to-play alternative to Cartridge Defense — no purchase or trial window. Shares Indie with Cartridge Defense.
The introduction to a wild ride with gangsters and deep state conspiracy theories
- 4
The Lab
Free-to-play alternative to Cartridge 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!
- 5
Z.A.T.O. // I Love the World and Everything In It
Free-to-play alternative to Cartridge Defense — no purchase or trial window. Shares Indie with Cartridge Defense.
USSR, 1986. A girl goes missing in the closed city of Vorkuta-5, yet not a soul seems to be concerned. Uncover the mystery behind her disappearance and transmit your signal to the universe.
- 6
Tails Noir: Prologue
Free-to-play alternative to Cartridge Defense — no purchase or trial window. Shares Indie with Cartridge Defense.
Tails Noir: Prologue is the first act of a post-noir narrative adventure. Become raccoon private eye Howard Lotor and explore dystopian Vancouver inhabited by animals as you uncover a deeply personal story of change and transformation.
- 7
of the Devil
Free-to-play alternative to Cartridge Defense — no purchase or trial window. Shares Indie with Cartridge Defense.
Immerse yourself in neon, smoke, and high-stakes legal gambles as a Defense Attorney with uniquely Killer insights in this episodic, diabolically stylish visual novel adventure game.
- 8
Aircar
Free-to-play alternative to Cartridge Defense — no purchase or trial window. Shares Indie and Casual with Cartridge Defense.
A simple immersive flying game built for VR. Pilot an aircar through a futuristic cityscape.
- 9
Mythgard
Free-to-play alternative to Cartridge Defense — no purchase or trial window. Shares Strategy and Indie with Cartridge Defense.
Welcome to Mythgard, a fantasy cyberpunk CCG of heroes, gods, and mythical beasts. Master the unique lane and mana systems in your rise to the top or enjoy team play with a friend. New players can use the code WelcomeChallenger to get 20 free packs and more to start their journey.