Single-player games like Zoo Protocol
Below are 8 single-player Steam games similar to Zoo Protocol, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Zoo Protocol page.
Ranked picks
- 1
Euro Truck Simulator 2
Single-player alternative to Zoo Protocol — playable solo, no multiplayer required. Shares Indie and Simulation with Zoo Protocol.
Travel across Europe as king of the road, a trucker who delivers important cargo across impressive distances! With dozens of cities to explore, your endurance, skill and speed will all be pushed to their limits.
- 2
American Truck Simulator
Single-player alternative to Zoo Protocol — playable solo, no multiplayer required. Shares Indie and Simulation with Zoo Protocol.
Experience legendary American trucks and deliver various cargoes across sunny California, sandy Nevada, and the Grand Canyon State of Arizona. American Truck Simulator takes you on a journey through the breathtaking landscapes and widely recognized landmarks around the States.
- 3
Weed Shop 4: Highland
Single-player alternative to Zoo Protocol — playable solo, no multiplayer required. Shares Indie and Simulation with Zoo Protocol.
VISIT HIGHLAND! Build a weed empire from nothing on a broken tropical island. Grow, sell, expand, and survive the chaos solo or in co-op.
- 4
Borderlands 4
Single-player alternative to Zoo Protocol — playable solo, no multiplayer required. Shares Adventure with Zoo Protocol.
Borderlands 4 is a mayhem-fueled looter shooter, jam-packed with billions of weapons, deadly enemies, and intense co-op action. Break free from a dangerous hidden planet as one of four new badass Vault Hunters.
- 5
Travellers Rest
Single-player alternative to Zoo Protocol — playable solo, no multiplayer required. Shares Indie and Adventure with Zoo Protocol.
Craft, farm, build and cook! In Travellers Rest you will have to use all the available tools to become the best tavern keeper in the realm. Create unique dishes and drinks to please your customers as you discover the world and its colorful characters.
- 6
The Invisible Hand
Single-player alternative to Zoo Protocol — playable solo, no multiplayer required. Shares Indie and Adventure with Zoo Protocol.
Want to get rich, quick? Welcome to FERIOS, where you’ll be empowered to pursue wealth and success as a mid-level stockbroker! Your wildest dreams of wealth can come true… at the cost of everything else.
- 7
Songs of Silence
Single-player alternative to Zoo Protocol — playable solo, no multiplayer required. Shares Indie and Adventure with Zoo Protocol.
Lead armies, rebuild fallen kingdoms, and rise to greatness! Embark on an epic journey of strategy in a visually stunning world. Fight intense battles and uncover a captivating story.
- 8
The Riftbreaker
Single-player alternative to Zoo Protocol — playable solo, no multiplayer required. Shares Indie and Adventure with Zoo Protocol.
The Riftbreaker is a solo or Co-op base-building, survival game with Action-RPG elements for up to 4 players. Hack & slash countless hordes of enemies. Build up your base, craft powerful weapons and research new inventions to survive.