Single-player games like Zapp
Below are 8 single-player Steam games similar to Zapp, 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 Zapp page.
Ranked picks
- 1
The Last Caretaker
Single-player alternative to Zapp — playable solo, no multiplayer required. Shares Indie and Adventure with Zapp.
Explore a drowned Earth, restore lost systems, and raise the last human seeds in this first-person survival-crafting adventure. Build, scavenge, defend, and launch humanity back to the stars.
- 2
Steel Artery: Train City Builder
Single-player alternative to Zapp — playable solo, no multiplayer required. Shares Indie and Simulation with Zapp.
Build a living city on rails in this steampunk fantasy train-city builder. Manage multiracial colonies with thousands of autonomous citizens, balance their needs, manage the economy, and create logistics as you explore distant regions to ensure the prosperity of your Empire.
- 3
My Drug Cartel
Single-player alternative to Zapp — playable solo, no multiplayer required. Shares Simulation and Early Access with Zapp.
A drug plantation management game with basebuilding, strategy and combat elements. Expand your plantation, hire workers, and plan new smuggling routes. But be ready to face a heavy response by law enforcement by hiring guards, buying weapons and building defences.
- 4
Whistle Stop
Single-player alternative to Zapp — playable solo, no multiplayer required. Shares Indie and Simulation with Zapp.
Lay track one hex at a time. Haul wood, brick and smoked fish out to towns that grow hungrier the better you serve them, and stay ahead of the Providential Bank's interest. In co-op you share one company, which means you share the bankruptcy too.
- 5
Brave New Wonders
Single-player alternative to Zapp — playable solo, no multiplayer required. Shares Indie and Simulation with Zapp.
Automate, optimize, and build vast factories in a post-apocalyptic automation game for those who have evolved beyond conveyor belts. Command intelligent robots that obey your plain-text commands in any language, explore the ruins of a lost civilization, and rebuild humanity one machine at a time.
- 6
Frontworks
Single-player alternative to Zapp — playable solo, no multiplayer required. Shares Indie and Simulation with Zapp.
Build a war factory on a hostile alien world. Extract raw ore and refine it into complex components. Automate logistics, manufacturing and army recruitment. Defend against huge waves of native robots and alien wildlife, then send your army to raze enemy bases for planetary domination.
- 7
Ecliptica
Single-player alternative to Zapp — playable solo, no multiplayer required. Shares Indie and Adventure with Zapp.
Ecliptica is a first-person open-world colony survival simulator with a fully dynamic economy. Set on a hostile alien planet, you'll found corporations, fight for resources, and build a sustainable future—or be wiped out by ruthless nature, politics, and competition.
- 8
Dream Engines: Nomad Cities
Single-player alternative to Zapp — playable solo, no multiplayer required. Shares Indie and Simulation with Zapp.
A survival city-building game with flying cities. Build, automate, and defend a flying city that travels between procedurally generated maps to survive in a wacky, nightmare-infested, post-apocalyptic world full of strange science and dreams.