Free games like Guinea Pig Gunner
Below are 11 free-to-play Steam games similar to Guinea Pig Gunner, 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 Guinea Pig Gunner page.
Ranked picks
- 1
Sheepy: A Short Adventure
Free-to-play alternative to Guinea Pig Gunner — no purchase or trial window. Shares Adventure with Guinea Pig Gunner.
A Short Handcrafted Pixel Art Platformer that follows Sheepy, an abandoned plushy brought to life. Sheepy: A Short Adventure is the first short game from MrSuicideSheep.
- 2
The Expendabros
Free-to-play alternative to Guinea Pig Gunner — no purchase or trial window. Shares Action and Adventure with Guinea Pig Gunner.
The Expendabros have assembled and set their sights on the forces of ruthless arms dealer Conrad Stonebanks in the forests of Eastern Europe.
- 3
![UNBEATABLE [white label] — Steam game cover](https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/1290490/header.jpg?t=1736770503)
UNBEATABLE [white label]
Free-to-play alternative to Guinea Pig Gunner — no purchase or trial window. Shares Action and Adventure with Guinea Pig Gunner.
A young girl learns a song. An exclusive side-story set in the world of D-CELL GAMES' upcoming rhythm-adventure.
- 4
Disfigure
Free-to-play alternative to Guinea Pig Gunner — no purchase or trial window. Shares Action with Guinea Pig Gunner.
Disfigure is a grim-dark action rogue-like where you battle relentless hordes of monsters lurking in the shadows. Unlock powerful weapons, craft god-like builds with hundreds of upgrades, slay colossal bosses, and push your limits in intense 20–30 minute survival runs!
- 5
The Lab
Free-to-play alternative to Guinea Pig Gunner — 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!
- 6
Z.A.T.O. // I Love the World and Everything In It
Free-to-play alternative to Guinea Pig Gunner — no purchase or trial window. Shares Adventure with Guinea Pig Gunner.
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.
- 7
Control, I'm Not Coming Back
Free-to-play alternative to Guinea Pig Gunner — no purchase or trial window. Shares Adventure with Guinea Pig Gunner.
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
of the Devil
Free-to-play alternative to Guinea Pig Gunner — no purchase or trial window. Shares Adventure with Guinea Pig Gunner.
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.
- 9
John's Quest
Free-to-play alternative to Guinea Pig Gunner — no purchase or trial window. Shares Action and Adventure with Guinea Pig Gunner.
You are John Appleby, game historian. Your shadow twin "Evil John" has been doing some evil business and is causing genres to collide! Only you have the power to restore peace and save gaming...
- 10
Phantom Beasts - Redemption
Free-to-play alternative to Guinea Pig Gunner — no purchase or trial window. Shares Action and Adventure with Guinea Pig Gunner.
St. Petersburg, Florida. 2059. The city is a quarantine zone and mysterious creatures make the difference in every battle. Phantom Beasts - Redemption is a free to play cyberpunk 2.5D shooter that blends creature training with explosive, gore-filled combat that makes every second a spectacle.
- 11
Gun Devil
Free-to-play alternative to Guinea Pig Gunner — no purchase or trial window. Shares Action and Adventure with Guinea Pig Gunner.
GUN DEVIL is an explosive platformer about rescuing your kidnapped hell wife from Satan's child, the Caramelized Dumbass and his Pimp Legion.